The local grocery store sells a bag of dog food for $22. The store pays $13 for the dog food. Which equation can be used to find the markup on the dog food?

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b

1

x = 1

step-by-step explanation:

0 ÷ x = 0

0 ÷ 1 = 0

the answer is 8.64

step-by-step explanation: