Emily had 3 yards of string to fly a kite. The string broke and Emily had only 20 yards of sting left. how many yards of string broke?

Hold up she had 3 yards of string, and it broke... so now she had 20? This doesn't make sense or I just don't understand the question.

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 !