20% of your customers call back within 72 hours of their first call. of those who call back, 10% call back again within 96 hours of their first call. of the 140 customers you spoke with yesterday, how many calls from those customers will you receive in the next four days?

An appliance salesman sets a goal to sell an average of 6 appliances per day for the first two weeks of his new job. the dot plot shows the number he sold each day during the first 13 days. what is the minimum number of appliances he must sell on the 14th day in order to reach his goal? a) 5 b) 6 c) 7 d) 8

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Add the fractions and simplify 1/2+ 1/3