Raplhy jogs at a rate of 4/2 miles in 2/5 of an hour. What is his speed in miles

Aflower has 26 chromosomes. to create a new flower, how many would a sperm cell have what is called?

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.