Mindy conducted a survey of the phones in four stores and wrote the following observations: 5 of the 8 phones in Store 1 were smartphones
13 of the 22 phones in Store 2 were smartphones
22 of the 30 phones in Store 3 were smartphones
12 of the 25 phones in Store 4 were smartphones

Based on the survey, which store had the greatest percentage of smart phones?

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [−1, 1] no, f is continuous on [−1, 1] but not differentiable on (−1, 1). no, f is not continuous on [−1, 1]. yes, f is continuous on [−1, 1] and differentiable on (−1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.

Is there an x intercept in the equation 60*1.15^x