7th Grade Math PSSA Prep: Expressions and Equations

No Calculator: Which estimate is closest to the value of 3 7/8 x 5 1/16?

• 15

• 18

• 20

• 24

Tags

CCSS.5.NBT.B.7

A club plans to spend no more than 85% of the $1,200.00 in its activity budget to buy as many radio-controlled helicopters as possible. The price of a helicopter is $110.99 plus sales tax of 6%. What is the greatest number of helicopters the club can buy?

• 8

• 9

• 10

• 11

Simplify: 4x - 5.2y + 6y + 7.9x - 8x

• 4.7xy

• -1.3x + 6y

• 3.9x + 0.8y

• 19.9x + 11.2y

Tags

CCSS.7.EE.A.1

The perimeter of a square is 28x - 4. What is the length of one side of the square?

• x – 1

• 7x – 1

• 14x – 2

• 24x – 4

Tags

CCSS.6.EE.B.7

Kelly has a savings account with a beginning balance of $800. She earns $340 a week at her job. For 8 weeks, she puts 15% of her weekly earnings into the savings account. Kelly makes 3 withdrawals of $45 each. What is the account balance at the end of 8 weeks?

• A. $785

• B. $848

• C. $1,073

• D. $1,163

Tags

CCSS.HSF.BF.A.2

Arnie buys 2 2/5 pounds of red grapes for $1.95 per pound. He buys 2 2/5 pounds of green grapes for $2.20 per pound. Which expression can be used to determine the total cost, in dollars, of the grapes Arnie buys?

• 2.4 (1.95 + 2.20)

• 2.4 x 1.95 x 2.20

• (2.4 + 2.4)(1.95 + 2.20)

• (2.4 * 2.4) + (1.95 * 2.20)

Tags

CCSS.7.EE.B.3

A group of adults and students buy tickets for a dance performance. Each ticket costs $4.65. The total cost of the tickets for the group is $93.00. There are exactly 3 adults in the group. What is the number of students in the group?

• 17

• 20

• 23

• 31

Tags

CCSS.7.EE.B.4A

An author receives $0.75 for each hardcover book or paperback book that is sold. There were x hardcover books and 42,000 paperback books sold of her most recent book. The author received a total of $60,000 for the book sales. The equation below can be used to determine the number of hardcover books that were sold.

0.75x + (42,000) = 60,000

How many hardcover books were sold?

• 18,000

• 24,000

• 28,500

• 38,000

Tags

CCSS.7.EE.B.4A

Walter is buying strawberries and grapes.

- The total amount he spends on the fruit must be less than $14.00.

- He spends $5.25 on a basket of strawberries.

- Grapes cost $1.75 per pound.

Which graph best represents all the numbers of pounds of grapes Walter can buy?

• 
• 
• 
• 

Tags

CCSS.7.EE.B.4B

Tasha sells gift boxes and cookies at her bakery.

• Gift boxes sell for $26.00 each.

• Cookies sell for $1.50 each.

• Tasha would like her total sales to be at least $50.00 from the sale of one gift box and some cookies.

• Which inequality describes all the numbers of cookies (x) that Tasha needs to sell?

• x ≥ 2

• x ≥ 8

• x ≥ 16

• x ≥ 24