city park workers plan to install a sidewalk around a 15 foot by 10foot rectangular flower garden. The sidewalk will be this same width all around the garden. write and simplify an expression that represents the area of the garden including the sidewalk?

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

answer:

f(5/2) = 10/3

i hope this you!

step-by-step explanation:

so, converting firstly the mixed fractions to improper fractions and then "adding".

answer: 0

step-by-step explanation: the positive, like 5, + its opposite, like -5 would be 0

5+(-5)=0, or 5-5=0