The chang's neighbor owns a ready-mix company. the company receives an order for 12.5 cubic yards of concrete. this mixture of concrete contains sand, cement, gravel, and water. for each pound of water, there are 5.5 pounds of sand, 2 pounds of cement, and 7.5 pounds of gravel. determine how many pounds of cement must be used. assume a cubic yard of concrete weighs 4,000 pounds.

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

Powerful women's group has claimed that men and women differ in attitudes about sexual discrimination. a group of 50 men (group 1) and 40 women (group 2) were asked if they thought sexual discrimination is a problem in the united states. of those sampled, 11 of the men and 19 of the women did believe that sexual discrimination is a problem. if the p-value turns out to be 0.035 (which is not the real value in this data set), then at = 0.05, you should fail to reject h0. at = 0.04, you should reject h0. at = 0.03, you should reject h0. none of these would be a correct statement.

How many square inches are in 60 square feet?