Solving system by elimination

7x+2y=24

8x+2y=30

At the bank of a river, by measurement, a = 9 ft., b = 15 ft., c = 12 ft., and d = 7 ft. How long is x? 9 1/3 ft. 11 1/4 ft. 20 ft.

Divide 12 by 4, subtract from 10 and then multiply result by 3. In number form

Jasmine left the house at 7:10 am to go to work. She gets back at 6:35 pm. How long is she out of the house?

What is the volume of a rectangular prism with a base of 24 square feet and a height of 5.25 feet?

What would you get if you multiple-2x with x

Ann is 5 feet 3 inches tall. To find the height of a lamppost, she measured her shadow to be 8 feet 9 inches and the lamppost's shadow to be 12 feet. To the nearest inch, what is the height of the lamppost?

Subtract: (3x^2 - 8x + 3) - (-5x^2 + 4x - 5) A. 8x2 - 12x + 8 B. - 2x2 - 4x - 2 C. - 2x2 - 12x + 8 D. 8x2 - 4x - 2

Electrons have what kind of charge?

What is 4 and 6 as a fraction in the lowest terms

A container holds 5 L of fluid. Does it hold more or less than 5 mL of fluid?