5x−y=10 3x+y=14 please solve the system of equations and show your work

Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.

How many zeros does this polynomial function, y=(x-8)(x+3)^2