What should you do first to simplify the expression (43 + 9) ÷ 76 + 5?

Solve: 3x+y=6 4x-2y=18 show all work !

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.

Yvaries directly as x. y =90 when x=6. find y when x=13