Review 7

What is the value of -9  $\cdot$  2.2?

The price of a DVD is $24.00 plus 8% sales tax. What is the sales tax on this DVD in dollars and cents?

The sum of the measures of angle M and angle R is 90 $\degree$ 

The measure of angle M is (5x + 10)

The measure of angle R is 55 $\degree$  

What is the value of x? 

Which situation can be represented by this inequality?
120  $\le$  12k+29

• Felicia has 12 buttons in her collection. She will collect 29 new buttons every year. Felicia collects buttons for k years. For what values of k will Felicia have at least 120 buttons?

• Felicia has 29 buttons in her collection. She will collect 12 new buttons every year. Felicia collects buttons for k years. For what values of k will Felicia have at most 120 buttons?

• Felicia has 29 buttons in her collection. She will collect 12 new buttons every year. Felicia collects buttons for k years. For what values of k will Felicia have at most 120 buttons?

• Felicia has 12 buttons in her collection. She will collect 29 new buttons every year. Felicia collects buttons for k years. For what values of k will Felicia have at most 120 buttons?

Which equation is true when k= -15?

• 3k - 11 = -34

• -53 + 4k = 7

• $\frac{k}{3}$ + 17 = 12

• $\frac{k}{5}$ + 2.5 = 0.5

Lawrence's father gave him 200 baseball cards. Each week, Lawrence purchases 25 baseball cards to add to his collection.

Which inequality can be used to find w, the number of weeks after starting his collection when Lawrence will have more that 750 baseball cards in his collection?

• 200w + 25 $<$ 750

• 25w + 200 $<$ 750

• 200w + 25 $>$ 750

• 25w + 200 $>$ 750

Marsha gave the cashier $20 to pay for 3 pairs of socks. The cashier gave her $5.03 in change. Each pair of socks cost the same amount.

What is the cost in dollars and cents for each pair of socks?

What is the solution to this equation?

30.16 = 17.56 + 5x

• 6.032

• 3.512

• 12.6

• 2.52

What is the solution set for -4x - 10  $\le$  2

• x  $\le$  -3

• x  $\ge$  -3

• x  $\le$  2

• x  $\ge$  2

Rebecca needs 10 $\frac{1}{2}$   yards of fabric to make a quilt. She has one piece of fabric that is 2 $\frac{1}{2}$  yards and another that is 4 $\frac{1}{4}$  yards. How many more yards of fabric does Rebecca need to make the quilt?

• 4 $\frac{1}{2}$  yd

• 3 $\frac{1}{4}$ yds 

• 3 $\frac{3}{4\ }$  yds

• 6 $\frac{3}{4}$  yds