Jason can wax the family car in 60 minutes while his brother kevin can wax the car in 40 minutes how long would it take jason and kevin to wax the car together

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?

Which number line correctly shows 0.8 + 0.3?

Here is another math questions. i will keep asking different questions. 4^2x=6