Nelson did 105 sit-ups in 3 minutes.

What is the unit rate?

In the figure shown below, m < 40 and ab =8. which equation could be used to find x?

The graph of f(x) = |x| is transformed to g(x) = |x + 11| - 7. on which interval is the function decreasing?

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?