A car travels at a speed of 45 mph what is the cars speed in feet per second how many feet will the car travel in 20 secs

Which triangle congruence postulate or theorem justifies my claim that the steps i made using construction paper and scissors produce an isosceles triangle? was it sss, sas, asa, aas, or hl?

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

If the scale factor between two circles is 2x/5y what is the ratio of their areas?