Here's the question you clicked on:
bettina19
a dugstore sells a drug costing $85 for $112 and a drug costing $175 for $238 A.) if the mark up policy of the drug store is assumed to be linear, write an equation that expresses retail price R in terms of costs( wholesale price) B) what doews a store pay (to the nearest dollar) for a drug that retails for $185 answers: A. R=1.4c-7 B. $137 i need solution and thanks ;)
What you want to do i here is realize that the markup policy is linear. That mean... |dw:1359143230412:dw|
The slope represents the markup rate, which is assumed to be linear (meaning the markup rate must be constant). In other words, cost is your x-variable and price is your y-variable. Together you have two points on the markup plot: (85, 112) (175, 238) These two points can be used to determine a line.