True or false? why and why not?

7a + 4 - 2a is equivalent to 7a + - 2a + 4

What is - 100 = - 10 square root - 2 - 17x?

Expression equivalent to - 2.5 (4x-3)

Mandana is ordering new tile for her kitchen floor. The area of the floor is 117.7 square feet, and she wants to order between 15% and 20% extra of the materials. Which of the following is a reasonable amount of tile for Mandana to order?

Erin has a $450 gift card from a clothing store. She spent $28 so far. She wants to buy barrettes for $2.95 each. How many barrettes can she buy without going over the limit of the card? (inequalities)

3/8d+3/4 factor out coefficient

Amedeo rental store rented 170 horror 230 drama 120 mystery 310 romance and 150 comedy if a person Celexa movie to rent what is the probability that it will be romance or comedy

The perimeter of a rectangle is 66 m. the length is 1 m more than three times the width. find the dimensions of the rectangle.

What is the value of the missing exponent in the expression below 523 : 10□ = 52.3

2x+3=x+x+3 Show your work

Based on the lesson, identify the first operation needed to solve the following equation. 2x + 3 = 11