Mr. Tankard's minivan has a 21 gallon tank. He can travel 354 miles on tank of gas. How many miles per gallon does the minivan get?How many tanks does of gas will he need to travel 870 miles?

Which equation and solution can be used to solve this problem? thirteen less than a number is sixteen. 13-n=16: add 13 to both sides. the answer is 29. n+13=16: subtract 13 from both sides. the answer is 3. n+16=13 subtract 13 from both sides. the answer is 3. n-13=16: add 13 to both sides. the answer is 29.

Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?

Using elimination, what is -4x+2y=-12 4x+8y=-24