Eli ran for two weeks. During the first week. Eli ran 12 miles. During the next week, he ran 15 miles. What is the ratio of the number of miles Eli ran in the first week to the totoal number of miles he ran in both weeks?

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

step-by-step :

not sure but it may be b, as i said i'm not sure.