An item costs a store $10 from the manufacturer. The store plans to mark
up the item at 80% of the cost. Use this
information to calculate the sticker price
the store should sell the item for.
A. $10.00
B. $22.50
C. $18.00
D. $20.00

x = 12

y = 15

step-by-step explanation:

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.