What ratios are involved in each of the measurement situations below? How are they used? a) perimeter of a square compared to its side length b) circumference of a circle compared to its radius c) perimeter of a regular hexagon compared to its side length

3(10x-y)-5(x-y^2) need this solved asap

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.