What are the features of the quadratic function f(x) = x^2 + 10x + 21?

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

The border line of the linear inequality 4x + 7y < 5 is dotted true or false?

William invested $5000 in an account that earns 3.8% interest, compounded annually. the formula for compound interest is a(t) = p(1 + i)t. how much did william have in the account after 6 years? (apex)