Answer:
multiply all your numbers once you get your answer it will come together
Area of <span>trapezoid=(7+3)*h/2=20 cm2
10*h/2=20
5h=20
h=4
the answer is 4.0 cm</span>
Start with the given formula for the surface area of a sphere.

Now substitute 2x + 5 in for r, the radius.
Then simplify the expression and write it in standard form.

