81 is 45% of what number

Last month ellen was in school for 116 hours. each school day is 6 hours long. how many school days was ellen in school last month?

In the field of quality control, the science of statistics is often used to determine if a process is "out of control." Suppose the process is, indeed, out of control and 15 % of items produced are defective.

Which property is shown by 0 + 9 = 9? Distributive Property Commutative Property of Addition Identity Property of Addition Associative Property of Addition

If Ru-Ping earns an A in science, an A in math, and a C in English, what is her GPA? A. 3.33 B. 2.33 C. 3.66 D. 2.00 (Not really a Math question, more like a college prep question.)

Between which two integers is between - 140

What is the y-intercept of y=3x - 8

Professor Green is interested in determining the average SAT score for the entire population of individuals who took the SAT. She wants to know how her class compares to the population of students who took the SAT.

Which ratio of dimensions of a circle equals pi a. circumference to radius b. circumference to diameter c. areato radius d. area to diameter

What is (4+3i) divided (2-3i)

The perimeter of a rectangle is 30 inches. If it's length is 3 times its width, find the dimensions