Ryan has a collection of 1,200 pennies. 25% are dated before 1980
35% are dated from 1980-2000
the rest are dated after 2000
How many pennies in Ryan's collection are dated after 2000?

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

I’m stuck on this equation, anyone got the answer?

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.