Write the following expression in expanded form 3(4y+x-8) For example: 5(x+2) in expanded form would be 5x+5*2.

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out

Can someone me with #s 8, 9, and 11. with just one of the three also works. prove using only trig identities.