NSCAS Math 7 Review #1

The height of a plant is 9 inches. The plant grows  $\frac{1}{8}$   inch each day. Which equation shows how to find the height of the plant, in inches, y, after x days?

• y =  $\frac{9}{8}$  x

• y = 9x + 0.125 

• y = 0.125x + 9

• y =  $\frac{1}{72}$  x

Sam can finish a running course in 6.5 minutes. His goal is to reduce his time to 5 minutes. Which inequality represents the times, t, Sam could achieve that meet his goal?

• t ≥ 5

• t ≤ 5

• t ≥ 1.5

• t ≤ 1.5

A store sells all of its products at a price 15% greater than the price the store paid for the product. How much does the store sell a product for when the store paid $120 for the product?

• $102

• $135

• $138

• $180

• 840,000 $m^2$

• 1,020,000 $m^2$

• 1,080,000 $m^2$

• 1,200,000 $m^2$

• 48 square inches

• 92 square inches

• 104 square inches

• 116 square inches

What is the value of the expression 2g + h when g = 3.5 and h = 7?

• 6.2

• 10.7

• 14

• 21

• $\frac{1}{5}$

• $\frac{1}{3}$

• $\frac{2}{5}$

• $\frac{3}{5}$

Tiffany bought 12 songs for $1.09 per song. Which equation shows the BEST estimate of the total cost?

• 10 x $1 = $10

• 10 x $2 = $20

• 12 x $1 = $12

• 12 x $2 = $24

Which inequality is equivalent to p +  $\frac{1}{4}$   ≥  $\frac{5}{8}$  

• p ≤  $\frac{3}{8}$  

• p ≥  $\frac{3}{8}$  

• p ≤  $\frac{7}{8}$  

• p ≥  $\frac{7}{8}$  

What is the value of 0.3 +  $\frac{1}{5}$   ?

•  $\frac{1}{8}$  

• 0.45

• 0.5

•  $\frac{4}{5}$