A collection of dimes and nickels is worth $3.30. If there are 42 coins in all, how many of dimes are there in the collection? (with work plz) a)12

b)18

c)24

d)30

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

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