Beach balls are very popular at Sam's Swim Shop. He decides
to begin charging 40% more.
If he originally charged $5.50,
then how much will Sam charge
now?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?