The areas of two similar triangles are 49 cm2 and 16 cm2. Give the (a) ratio of the corresponding side lengths and (b) ratio of the perimeters?

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

The given diagram shows the parts of a right triangle with an altitude to the hypotenuse. using the two given  measures, find the other four.

Write as a product: ac^2–ad+c^3–cd–bc^2+bd