A state sales tax rate is 3.5%. If the tax on a purchase is $7, what was the amount of the purchase?
Show work please

$7.25

Step-by-step explanation:

7.00 x 3.5 = 24.5     round it 0ff its 25 = 25 cents

$7.00 + .25 =$7.25

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.