Alex leaves home, travels 5 miles east, and arrives at the library. he leaves the library and travels 3 miles north to a friend's house. this trip can be plotted on the coordinate plane, where home is the point (0,0). alex wants to find out how far his house is from his friend's house and uses the distance formula. which other formula can he use?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Find the actual dimensions of the box. the side length are in meters and integers. the surface area of the box is 104 m2 and volume of the box is 60 m3.

Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655