Find the product mentally.

(2j + 7) (2j - 7)

A: 4j2 + 49

B: 4j2 - 49

C: 2j2 - 28j - 49

The area of a rectangular wall of a barn is 160 square feet. It's length is 4 feet longer than twice it's width. Find the length and width of the wall of the barn

Suki wrote this multiplication story for 3*6 l have 3 brother lam 6 year older than akira how old am l what is wrong with suki problem explain your thinking rewrite the multiplication story so that it works with 3*6

Janice makes 10,000 hats, but the orders coming at only 10 hats a week. At this rate, how many weeks will it take her to sell all her hats?

Tim install 50 square feet of his floor in 45 mins. At this rate how long does it take him to install 495 square feet. Is that 99.5 or 445.5?

Mr. and Mrs. Garcia took thier three children to see a matinee on saturday. They spent a total of $55.50, which included $29.25 at the concession stand. Each of the movie tickets cost the same amount. Which equation shows the cost of each ticket, t?

What is 54 is 75% of

Change the fraction w-3/w+5 into an equivalent fraction with the denominator w^2+w-20

Luke is walking to the skating rink to pick up a practice schedule. Then he is walking to Marks house. Will he walk more than a kilometer or less than a kilometer. Luke lives 0.4 kilometer from skating rink. Mark lives 0.

Whats the formula for area for a rectangular prism

650ft squared dived by 2/3 hour