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

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

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.