The equation of the line that is perpendicular to y=2/5x+4 and contains the point (4,-3)

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Two airplanes start at the same place and travel in opposite directions,one at 395 miles per hour and the other at 422 miles per hour. how many hours will it take for the planes to be 2451 miles apart?

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.