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

The graph below shows the price of different numbers of mats at a store: a graph is shown. the values on the x axis are 0, 2, 4, 6, 8, 10. the values on the y axis are 0, 21, 42, 63, 84, and 105. points are shown on ordered pairs 0, 0 and 2, 21 and 4, 42 and 6, 63 and 8, 84. these points are connected by a line. the label on the x axis is number of mats. the title on the y axis is price in dollars. which equation can be used to determine p, the cost of b mats?

Ineed some on this. not sure how to solve.

Someone me and explain! will award brainliest!