The water level in Lake Siscal dropped 6 3/4 inches in the fall. In the winter, the level rose 4 2/3 inches. Which expression shows one way to calculate the total change in the water level in inches during the fall and winter? A. -6 3/4 + 4 2/3
B. -6 3/4 - 4 2/3
C. 6 3/4 + 4 2/3
D. 6 3/4 - 4 1/3

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

Mrs.sling bought a pound of green beans for $1.80. how much will mrs.tennison pay for 3 1/2 pounds of green beans?

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?