How to factorize a²-21ab-100b²

Find all real numbers $t$ such that $/frac{2}{3} t - 1 < t + 7 / le - 2t + 15$. Give your answer as an interval.

Any suggestions for a word problem for the equation : 5/12 * 1/6?

How much material is needed to construct a triangular tent that is 16 feet wide, 6 feet tall, and 12 feet long with side measurements of 10 feet?

A book weighs 6 pounds. How many ounces is the book?

Joel finished the race in 8.04 seconds. Ray finished the race in 8.40 seconds. Which statement is true? A. Joel and Ray finished the race in the same amount of time. B. Ray had the faster time. C. Joel had the faster time.

A bag contains 1 red, 2 yellow, 3 white, and 3 pink jelly beans. If one jelly bean is drawn find p (yellow)

Solve the equation 15.625 = s3 to find the length of one side of the container

Another order calls for 26 widgets. The widgets comes in boxes of 5. How many full boxes of 5 do you pull? How many single items do you still need?

How many natural numbers are there in 500²and501²

Write an Algebraic Expression for Problems 1 - 6. 1. Five less than eight times a number 2. Thirteen more than a number 3. A number divided by seven 4. John went to Cinemark. The movie cost $12 and each drink cost $3.50.