Select all that are true for the following quadratic: y = 2 x 2 + 3 x + 5

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

If 20% of a number is 35, what is 50% of that number?

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.