math
posted by k on .
You purchase a shirt for $8.50. There is a 6% sales tax. Your total cost will be
A. $8.55
B. $8.98
C. $9.01
D. $13.60
how can i solve this?

Multiply:
$8.50 * 1.06 = ? 
how did u get the 1.06?
6% i move the % sign moved the decimal 2 place to left 0.06? 
Right. 6% = 0.06
You could multiply 0.06 * 8.50 to find the tax. Then you can add the tax to the original price. 
C. $9.01
Cost price = $8.50
Sales tax = 6% x 8.50
0.06 x 8.50 = $0.51
Total cost = Cost price + Sales tax
= $8.50 + $0.51 = $9.01