A student says that the perimeter of a rectangle side lengths (2x-1) inches and 3x inches can be written as (10x-1) inches because 2 (2x-1) + 2 (3x) = 10x-1. Explain why this statement is incorrect

Mark needs 40 feet of fencing to do two sides of his back yard. The fencing he wants is sold in sections of 5 1/2 foot lengths. How many sections will Mark need to have enough to fence the two sides?

Simplify the expression. 5g - 7g + 4 + 2g

Which expression is equivalent to 4^⋅ 4^-8

If 36 is 25% of the total, what is the total?

You are working as a clerk at a rental car company. A customer asks for change for a $1 bill because the vending machine only accepts coins. You do not have any quarters, so you give the customer change in dimes and nickels.

A boat leaves a dock at 2:00 pm and travels due south at a speed of 20 km/h. another boat has been heading due east at 15 km/h and reaches the same dock at 3:00 pm how many minutes after 2:00 pm were the two boats closest together?

denise constructs a triangle with angles measuring 64o and 32o. what would the third angle measurement be

Which of the following are solutions to the equation below? x^2-6x+40=6x+5

Malcolm is driving 1,323 miles from Wichita to Charleston for a family reunion. He drives 443 miles the first day and 409 miles the second day. Round each distance to the nearest ten and estimate about how many miles Malcolm has left to drive.

What's an example of an integer word problem in addition?