Question 1.
evaluate the expression 7x for x= 1/14.
a.7 1/3 b. 8 3/4 c. 7 3/5 d. 2 2/3

question 2.
multiply, and simplify the answer 6/5(7/6)
a.36/35 b. 6/5 c.7/5 d. 13/11

question 3. as a rule of thumb, people should drink 1/2 ounce of water for each pound of body weight per day. how much water should a 145-pound person drink per day?
a. 291 ounces b.72 1/2 ounces c. 145 ounces d. no water should be consumed at this weight

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?