Help I nee this ASAP, What is the price of 1 tennis ball if a package of three tennis balls cost $4.95?

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.

How do you find percent change? ? i will give brainliest for the bestme i don’t understand