Question

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
where t= total price jose paid for the shirt
c= cost of the shirt
B= sales tax (percent)
Jose wants to find the cost of sales tax. Rewrite the formula to solve for the percent sales tax

Answer 1

In order to rewrite it we can use the next procedure:

t=c+cb
t - c = cb
(t - c)/c = b

And there you have the formula done
Hope this works for you