Which number has the same value as 40 tens?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Aline passes through (1,-5) and(-3,7) write an equation for the line in point slope form rewrite the equation in slope intercept form