Peter spends $75 for a video game and a cd. the cd costs $15. the cost of the cd is what percent of the money spent on the game and the cd?

What is the maximum total area that 450cm of string can enclose if it is used to form perimeters of two adjoining rectangles as shown?

This question awards 100 ! i really don’t want to fail i will also mark you !

If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 165-pound man? 1.0 kg ca 5.1 kg ca 1.0 x 102 kg ca 5.1 x 102 kg ca