What is slope of line with equation 2x+y=10

If square root x = -7, then x= -49 true or false

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?