What property is this in math 6 + (4+x) = (6+4) + x

Nina and three friends at lunch at the cafeteria cafeteria. They decided to split the bill evenly the total bill was $17.84 how much was each person share

Is 38 prime or composite?

Aubree mowed 5 lawns in 4 hours. What was her rate of mowing in lawns per hour? Express your answer in simplest form.

8. What expression is equivalent to 3y - 21?

Karen is using a number line to represent the doors in the school hallway. She labels 0.25, 0.5, and 0.75 on the number line as a scale reference. Where should Karen place a mark to represent a door that is 0.7 from the start of the hallway?

What is the reference angle of - 3 radians? Explain.

The numbers of student at valley view middle school increaded by 10% to 770 total student how many student were enrolled at vally view middle school before th increace

Do you add the discount before or after the tax

What is eight and three thirds minus eighteen halves

The expression below is the factorization of what trinominal (7x+5) (2x-3)