Jesse wolkes 3 1/2 miles in
1 1/4 hours. What is the C. O.P?

yes

step-by-step explanation:

yes

you need to add a picture

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.