How many pieces of cake have you and your 3 friends eaten out of1/2 of an eaten cake?

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?

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?

The length of the line segment ac is 8x-9 what is the value of x