A piggy bank contains 4 pennies, 7 nickels, 6 dimes, and 7 quarters. If a coin is chosen at random, which two coins are equally likely to be chosen? A. pennies and nickels
B. nickels and dimes
C. nickels and quarters
D. dimes and quarters
PLS HELP!!!

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?