If Rebecca reads 2pages per minute, how many pages could she read in 2 1/2 hours?

300

Step-by-step explanation:

2*60 for 1 hr

120*2 to find two hrs

2*30 for 1/2 hr

add

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

3

step-by-step explanation: