If f(×)= (sinx+1) / e^x+2, then f'(x) equals

For what value of x does 4x = (1/8) x + 5?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?