At a bargain store, tanya bought 4 items that each cost the same amount. tony bought 5 items that each cost the same amount, but each was 1.25 less than the items that tanya bought. both tanya and tony paid the same amount of money. what was the individual cost of each person's items?

3x=4x-9

x=9

x-2.25=6.75

Tanya spent $9 on each item; Tony spent $6.75 on each of his items.

it's

y = 5x + 17

step-by-step explanation:

a perpendicular line will be the opposite reciprocal slope of the given equation.   the slope given is -1/5 so the opposite reciprocal is 5

find b:

7 = 5 (-2) + b

7 = -10 + b

17 = b

write equation

y = 5x + 17