Alex was thinking of a number. Alex adds 13 to it, then doubles it and gets an answer of 84.5. What was the original number?

If you substitute 3 for x what is the matching value for y? - 3x-y=-7

Gerard has $30$30 to spend on lunches this month. Lunch costs him $1.50$1.50 each day. After Gerard buys lunch for 88 days, which statement is true?

Which of the following is the perimeter of a triangle with side lengths of 7 inches, 8 inches, and 13 inches? 15 inches 13 inches 28 inches 27 inches

Speed skiing takes place on a course that is 2/3 mile long how many feet long is the course

The number 4432 contains a set of digits in which one digit is 1/10 the value of the other. What are the values of the digits

2[s+3 (s-31) ]=18 how would i solve this

Paula ran 24 ft with the football and then passed it 15 feet to newt. newt ran 70 yards for a touchdown. what was the total number of feet the ball traveled?

The amount of soda a dispensing machine pours into a 12 ounce can of soda follows a normal distribution with a mean of 12.06 ounces and a standard deviation of 0.04 ounce.

A eagle was flying at the height of 10 m. He dove down 5 m to catch a mouse. What is the sum of how much the eagle flew?

Banks will pay you interest on your money based on the interest rate. True or false?