A rock occupies a volume of 20 cm3and has a mass of 54 grams. Find the density of this rock.

One integer is 5 more than another. their product is 104. find the integers

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists