Alvin's age is two times Elga's age. The sum of their ages is 30. What is Elga's age?

On some interstate highways, the max speed a car may go is 65mph. a tractor-trailer may not drive more than 55mph. The minimum speed for all vehicles is 45 mph. Write an inequality to represent an allowable speed for the tractor-trailer and car.

Who to solve 6n+2f=736 and 10n+2f=920 by doing elimination

What's an algebraic expression for a number n divided by 4?

What is the end behavior of the function f (x) = 2x^4 + 3x^3 - 9x^2 + 65x - 586?

A stadium has a lot of seats! Each section has 620 seats and there are 25 sections. Write an equation that could be used to find the number of seats in the stadium, s. Solve for s.

What do you add to 3 and 4/7 to make 6?

What are the next three terms of the pattern 4, - 2, - 8, - 14, ... ?

Ifx + 2y = 8 and - 2x + 3y = 5, then what is the value of 2x + 3y?

Caden built a rectangular prism that has a length of 8 units a width of 3 units, and a height of 5 units. what is the volume of the prism. show your work

3x-5y = - 25 Solve for x