H(t) =t^2 +4t+3 What is the vertex of the parabola

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Louis wants to carpet the rectangular floor of his basement the basement has an area of 864 square feet the width of the basement is 2/3 its length what is the length of lewis's basement