Please look at the screenshot Look at the screen shot and you have to explain your answer after you answer it

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122