Step-by-step explanation:
To find the answer we first multiply 129 by 0.7 since the price descresed 30 percent. each percent is equal to 0.01.
129 * 0.7 = 90.3
Then we multiply 90.3 by 1.0875 since that is the sales tax
90.3 * 1.0875 = 98.2
so the cost is 98.2
Answer:
$98.20
Step-by-step explanation:
"30% off" refers to the discount (amount by which the original price is reduced); 100% - 30%, or 70%, refers to the sale price. It's the latter that we want. Multiply $129 by 0.70 to obtain the sales price, obtaining $90.30.
The final cost to Debbie is this sales price plus the 8.75% sales tax. Multiply this $90.30 by 1.0875 to obtain the sales price: $98.20.
