Can somebody me ? im being timed, and i just need the main answer to this , you can explain if you want you

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

What is the length and width of a 84.5 square foot rug? will mark

What is the slope of the line? a. -5/2 b.2/5 c. 5/2 d.7/2