19. Markup Solve for r in the formula M = L + rL where M is the markup price, L is the list price, and r is the discount rate.
a. An item with a list price of $63.80 is marked up to $121.80. Find the discount
rate. Round your answer to the nearest whole percent.
b. An item with a list price of $65 is marked up to $146.25. Find the discount rate.

3/20

step-by-step explanation:

well, there are 20 outcomes, and 3 of them you want. so, 3/20

answer: your answer is a

363 square inches

step-by-step explanation:

surface area of a pyramid is b + 1/2ph

b is the area of the base: 11 x 11 = 121

p is the perimeter of the base: 11 + 11 + 11 + 11 = 44

h is the height of the pyramid: 11

121 + 1/2(44)(11)

121 + 242

363