The answer is 25m.
Height = 15
Length = 25
Height+lengthx2= 80(perimeter)
Height x length=375m2(area)
Markup means they sell it for that percentage more than they bought it for. First let's calculate how much they will mark it up for:

Convert 87% into a decimal(87/100):

Multiply:

This is how much they'll mark it up, now let's add it to how much they bought it for to find out the selling price:
Answer:
$46
Step-by-step explanation:
Cost: 4p + 3c + 16
if p=3 and c=6 then,
4(3) + 3(6) +16
12+18+16
46 dollars spent
Answer:
Checking account B
Step-by-step explanation:
If you do 7.50 times 4 plus 23 you get 53 dollars. With plan B you go 9.50 times 4 plus 14 to get 52 dollars.