An item costs $ 390 before tax, and the sales tax is $31.20 . Find the sales tax rate. Write your answer as a percentage.

Step-by-step explanation:

390x=31.20

divide each side by 390

you get 0.08

multiply that by 100

you get 8%

step-by-step explanation:

first you will have to convert 3/4 into a decimal

which is .75

then you will have to divide 1.5 by .75

which is 2

no you have to divide

shift 4 units up, and 1 unit left.

it will translate f(x) = 3^x to g(x) = 3^(x+1) + 4