3.6x+4.5y when x=3 and y=7

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c