$77.40
$72 (price) x 1.075 (the one is so you can do it in one step, the .075 is 7.5%)
That equals $77.40
Answer:
V = 12,348·π
Step-by-step explanation:
The given parameters of the glass Vase are;
The shape of the glass vase = A sphere
The radius of the vase, r = 21 inches
The given formula for finding the volume of a sphere is 
Therefore, when r = 21 inches, we get;

Therefore, the expression for finding the equation of the spherical glass vase, V = 12,348·π
You plug in the point into each equation to see if the answer comes out equal. Such as the first one, so you have y=-3/4x+1. So you plug in the -4 for the x then plug in the -2 for y. So you get -2=1.1875, as you see both sides don't add up. As you progress in Algebra I'm guessing that you're in, you'll progress as the year goes on. So your answers are 3x-4y=-4 and y+2=3/4(x+4).
Answer:The solution is in the attached file
Step-by-step explanation: