7th Grade Expressions

A store is having a sale for 35% off all items. Which expression does not represent the sale price of any item? Let (x) represent the original price of the item.

• x - 0.35x

• 0.65x

• x(1 + 0.35)

• x(1 - 0.35)

Tags

CCSS.6.EE.B.6

A store marks up every item by 45%. Which expression represents the sale price after the mark-up? Let (p) represent the original price.

• 1.45p

• p + 0.45

• 0.45p

• p + 1.45

Tags

CCSS.6.EE.B.6

The price of coffee bean fluctuates 14% in both directions. Which expression does not represent the possible cost of the coffee beans? Let (b) represent the original price.

• 1.14b

• 0.86b

• b + 0.14b

• b - 0.86b

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

Simplify: -3x + 6 + 5x - 8x + 2x - 2

• -4x + 4

• 0

• 4x + 4

• 18x + 4

Tags

CCSS.7.EE.A.1

Simplify: 0.25(x + 0.2) - 0.2(x - 0.25)

• 0.05x

• 0.05x + 0.1

• 0.45x + 0.1

• 0.5x + 0.1

Tags

CCSS.6.EE.A.3

Tags

CCSS.6.EE.A.3

• Step 1

• Step 2

• Step 3

• There is no mistake.

Tags

CCSS.6.EE.A.3

• -43x + 9y

• -7x + 9y

• 7x + 9y

• 43x + 9y

Tags

CCSS.7.EE.A.1

• 19m + 12n

• 19m - 12n

• -19m - 12n

• -19m - 12n

Tags

CCSS.HSA.APR.A.1

Tags

CCSS.7.NS.A.1D