Which answer shows the proper use of additive inverse's

2a+b + (-b) = 2a+0

2a+b=b+2a

2a+b+0=2a+b

(2a) * b=2 (a*b)

7x + 55 ≥ 300. Solve this inequality for x. identify a number of pages that the student could read per day in order to have at least 300 pages of the novel read in a week.

In a movie 289 aliens plan to visit earth. Each ship can hold as many as 3 aliens. What is the least number of ships needed?

How do you simplify - 20=-4x-6x

Is 400,00 has a value of 400.

Janice gets an order for 1000 hates, have to be really in two weeks. it take her 2.5 hours to finish each hate. how many hours will it take her to finish the order?

Workers have painted 920 square feet of an office. they have completed 80% of their job. How many square feet do they need to paint in all?

How to do word problem with addition or subtraction of integers

Doomtown is 300 miles due west of Sagebrush and Joshua is due west of Doomtown. At 9 a. m. Mr. Archer leaves Sagebrush for Joshua. At 1 p. m. Mr. Sassoon leaves Doomtown for Joshua. If Mr. Archer travels at an average speed 20 mph faster than Mr.

The perimeter of a rectangular gaprden is 298 feet if the width of the garden is 65 feet what is it's length?

Find the product of 8341 and 235