Martha is buying two shirts that each cost $20 at a local store. She is considering two options to purchase the shirts. Option A. Use the store-sale buy one shirt and get a second shirt 50% off the original price

Option B. Use a coupon for 30% off the entire purchase. Martha will also pay 7% with tax on her purchase Which option would cost less money show all work

Option A:

The first shirt costs $20.
The second shirt, with the 50% off, would cost $20*0.50 = $10.
Therefore, the total cost of the two shirts would be $20 + $10 = $<<20+10=30>>30.
With the 7% tax, Martha would have to pay an additional $30*0.07 = $2.10.
So, the total cost for Option A would be $30 + $2.10 = $<<30+2.10=32.1>>32.1.

Option B:
The total cost of the two shirts without any discount would be $20*2 = $<<20*2=40>>40.
With the 30% off coupon, Martha would get a discount of $40*0.30 = $12.
Therefore, the total cost for Option B would be $40 - $12 = $<<40-12=28>>28.
With the 7% tax, Martha would have to pay an additional $28*0.07 = $1.96.
So, the total cost for Option B would be $28 + $1.96 = $<<28+1.96=29.96>>29.96.

Comparing the two options, Option B is cheaper as it would cost $29.96 compared to $32.1 for Option A.