When adding or subtracting fractions with like denominators, does the denominator change?

If the hypotenuse of a 45°-45°-90° triangle is 13, what is the length of one of the legs?

Gwen Gwen purchased 28 items, spending a total of $108. Balloons cost $3 each, bags of candy cost $4 each, and caps cost $5 each. As students walked by, she gave each student one of each.

How to do equations with the distributive property

If a thermometer indicates 30 degrees Celsius, what is the temperature in degrees Fahrenheit? a. 54 F b. 17 F c. 24 F d. 86 F

Match the top cards to the bottom cards to show doubles plus 1

Three of the angles of quadrilateral are 100 degrees, 104 degrees and 44 degrees. What is the size of the 4th angle

Eugene typed 525 words in 15 minutes. At that rate, how many words would he type in 8 minutes?

Ling tried to evaluate the expression 15:5+7*5

What is the exact value of tan (-pi) ?

Which term describes the number of square units contained in the interior of a polygon? A. Perimeter B. Width C. Height D. Area