If two angles are supplementary (sum of the two angles equals 180 degrees), find each angle if one angle is 30 degrees more than twice the other angle.

Write the fact family for 115?

The temperature T of a cup of coffee is a function T (t) where t is the time in minutes. The room temperature is 18° Celsius.

Simplify this expression 8.4 (7x-4) + 3.9

Solve x 5x-12=63 what is the answer to x

A $35 decrease followed by a $25 increase is it same as the origional price, is it less the the origional, or is it greater than the origional

Angles DAB measure (4x-2) and angles BCD measures 47 degrees. find x

Which expression is equivalent to the following expression? 3 (2x + 3) 5x + 6 6x + 6 6x + 9 5x + 9

Use compatible numbers to find two estimates 33 divided by 2242

What is 7,058 divided by 9

78 students are going to be divided into 24 groups and the number of each group member will be either 4 or 2. How many groups of 2 will there be? Let x be the number of groups of 2 and let y be the number of groups of 4