Petra wants to buy a skateboard. the skateboard deck usually costs $37.50, but it is on sale for 20% off. if the sales tax rate is 5.2%, how much will petra pay for the skateboard deck in all?

a. $30.00

b. $31.56

c. $31.95

d. $39.45

31.56

Step-by-step explanation:

take 37.50 and divide it by 100

then multiply that by 80

you should get 30,

30 is 80% of 37.50 which is 20% off of the original price

then you divide 30 by 100 and multiply it by 5.2

this will get you 1.56

add that to 30 and you get 31.56

nope.   happens to me as well.

-aparri

answer is b

step-by-step explanation: