Can someone help me on Algebra 2

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?

In the diagram below,abc is congruent to dec what is the value of x

Suppose your sat score is 2040. a college with an average sat score for admintted students of which of these would most likely be your best option?