Question

PLEASE HELP ASAP OFFERING 11 POINTS

Jose sees a shirt he wants to buy. His friend reminds him that he'll have to pay the price of the shirt plus sales tax.

A formula describing this scenario is
T = C + CB

Jose wants to find the cost of sales tax. Rewrite the formula to solve for the percent sales tax.

T = total price Jose paid for the shirt
C = cost of the shirt
B = sales tax (percent)

Answer 1

So we start with the first equation:
T=C+CB

We want to get B by itself, because the key shoes that B is the sales tax.
First, we should move C over, so that CB is by itself.

T-C=CB

Finally, divide both sides by C, so that B is all by itself.
(T-C)/C = B

The final answer is B= (T-C)/C

Answer 2

t=c+cb 
t - c = cb 
(t - c)/c = b