Which is a solution to the following system of equations? { y + x^2 - 8 = 0 }
{ y + 2x -9 =0 }

A) (0, 8)
B) (1, 7)
C) (2, 4)
D) (-1, 7)

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?