There was some gas in the tank. i added 13.3 gallons to it. after that, there was 21 gallons. how many gallons were in the tank at the start?

Jessica and martha each have a bag of cookies with unequal quantities. they have 30 cookies total between the two of them. each of them ate 6 cookies from their bag. the product of the number of cookies left in each bag is not more than 80. how many more cookies will jessica have martha? if x represents the number of cookies jessica started with, complete the statements below.the inequality that describes the relationship between the number of cookies each one of them has is x^2 - x +224 > = 0.jessica has at least cookies more than martha.

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

In a column proof the right column states your reasons