Ken studies math for 45 minutes each day. In 15 minutes, he completes two math problems while watching music videos. The number of questions worked, q, is proportional to the amount of time spent, t. Which equation can be used to show the rate, r, of problems worked per minute for Ken?

A. 45r=15

B. 45r=2

C. 15=2r

D. 2=15r

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why?