Astudy of diet and weight gain deliberately overfed 16 volunteers for eight weeks. the mean increase in fat was x = 2.81 kilograms and the standard deviation was s = 1.32 kilograms. what are x and s in pounds? (a kilogram is 2.2 pounds.)

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?