Square root(3x+7)=x+3

Plz which expression is equivalent to the expression below?

Consider the integral: 4 0 16 − y2 − 16 − y2 4 1 x2 + y2 dz dx dy . (a) describe w. use the standard view of the x, y, and z axes. front half of a cone with a rounded top. full cone with a flat top. right half of a cone with a flat top. front half of a cone with a flat top. right half of a cone with a rounded top.

Find the solution of this system of equation -7x+y=-20 9x-3y=36