David bought 2.45 pounds of trail mix. The trail mix costs $6.75 per round. How much did David spend for the trail mix?

Given a binomial distribution variable with n=20 and p=0.60 find the following possibilities using the binomial table a) p(x < 13) b) p x > 15) c) p(x = 17) d) p(11 < x < 14) e) p(11 < x < 14)