Solve the following problem by Square Root.
y = - 4x2 + 16

Divide. write in the simplest form. 4 1/6 divided by 10

Which number completes the inequality? 2/3 < _ < 7/9

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *