You are in a room with other students and are asked to get in groups of 3. When finished, there are 21 groups of 3. How many students are in the room?

Aiden's mom calculated that in the previous month, their family had used 40% of their monthly income for gasoline, and 63% of that gasoline was consumed by the family's SUV. If the family's SUV used $261.

Express the seventh root of unity in standard form a+bi

How many meters are in a 5 km race

Solve for x 3x+4=9x+3

If the diameter of a circle is 8 cm, what is the exact circumference of the circle? A 2π cm B 4π cm C 8π cm D 16π cm

What does it mean when it says to estimate the sum or difference? In a math problem: 6/7+3/8 and 4/5+2 7/8.

60 minutes is 20% of what number

Negative 3/4 plus negative 3/8

Jaimi went to have a manicure that cost $30. She wanted to tip the technician 20% and tax is 5.75%. how much did she spend total for the manicure?

Which description represents this type of sequence - 99, - 96, - 92, - 87, - 81