Write 7/10 as a sum of fractions two different ways

Which graph represents the parent function of y=(x+2)(x-2)

Which graph has a rate of change of zero

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? *