Maggie has been exercising by climbing steps. Her climbing at the end of each week is listed in the
chart below. What is the percent of increase in
Maggie's rate of climbing steps from the end of
week 1 to the end of week 4?

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation:

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x