Aboy has 6 red , 5 yellow and 4 green marbles. in how many ways can the boy arrange the marbles in a line if: a)   marbles of the same color are indistinguishable? b)  all marbles have different sizes?

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

Prove that quadrilateral is a rhombus.

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.