HEL The graph of f(x) = ax^2 opens upward and is narrower than the graph of f(x) = x^2. Which of the following could be the value of a?
A. −6
B. −0.7
C. 0.4
D. 3

The oates family went out for dinner the price of the meal was $33.95 the sales tax was 7.25% of the price of the meal . the tip was 15% of the meal and the sales tax . how much money did the oates family pay for the meal, including tax and tip