Why is money as a store of value useful for business owners?

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?

If you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?