A triangular prism is 7.1 feet long. It has a triangular face with a height of 19 feet. The volume of the prism is 654.265 cubic feet. What is the base of its triangular face?

What is the value of x when x + 7 = 21?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Choose the equation below that represents the line that passes through the point (2, 4) and has a slope of 3. a) y − 4 = 3(x − 2) b) y − 2 = 3(x − 4) c) y + 4 = 3(x + 2) d) y + 2 = 3(x + 4)