What is the name for a mathematical phrase?

4 ft 9 inches and 165 are you fat? Is 225 divisible by 1 2 3 4 5 6 7 8 9 10? Are the refreshments free on the plane? Why is the number 9 composite? What is the smallest 7 digit number with no two digits alike? What is the difference between a linear scale and a non linear scale? What is the next highest prime number after31? What is the mathematical formula to Convert a circle diameter in millimeters to square millimeters? How many cm2 in m2? How many perpendicular lines on a rhombus? What is the square root of 14400? How does an airplane stay up in the air? How many qt are in 5 c? How many times can 5 go into 39? What are the disadvantages of Fibonacci search? What subtraction problem can you form the numbers 012017 equal 68? Would you use mean mode median to average the points? What is a relationship between two quantities called input and output? What times what equals 2709? What is 4 trillion divided by 320 million?