Prove that (a-b) x (a+b) = 2a x b is true. (a and b are vectors)

What is 4 times 5/12

Bill drove 715 miles in 11 hours. At the same rate, how long would it take him to drive 455 miles?

James and his friends ordered b hamburgers that cost $4 each and f fruit cups that cost $3 each. Write an algebraic expression for the total cost of their purchases?

Peyton is three years younger than Justin. Matt is four times as old as Peyton. If you add together the ages of Justin, Peyton and Matt, the total comes to 39 years. How old are Justin, Peyton and Matt?

Question 1 A spinner has 8 equally sized sections, 2 of which are gray and 6 of which are blue. The spinner is spun twice.

To bill customers for water usage, one city converts the number of gallons used into units. This relationship is represented by the equation g = 748u, where g is the total number of gallons of water used and u is the number of units.

A theater company charges $8.50 per ticket for people of all age groups. If c represents the total number of children who bought tickets and a represents the total number of adults who bought tickets, which expression best represents the total money

A baseball stadium holds 45,000 seats. If tickets have been bought for 5/8 how many seats are still available

jon is going to a concert out of town. after work he has 2 hours to get to the concert 158 miles away. what speed must you maintain to get there in time

What is 0.69 expressed as the quotient of two integers in simplest form