math problem

A. Identify and explain the purpose of one of the following formulas. Work an example and solve when all of the variables except 1 are given:

a. I = prt

g. A = πr2

b. A = ½bh

h. C = 2πr

c. P = 4s

i. A = 6s2

d. P = 2l + 2w

j. V = lwh

e. D = rt

k. A = bh

f. F = (9/5)C + 32

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