Rounding to the nearest tenth, which of the following give an overestimate? Choose all that apply.
A. 45.07 × 3.45
B. 19.74 × 5.53
C. 8.16 × 60.29
D. 2.92 × 77.81
E. 32.86 × 10.4

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Acourt reporter is transcribing an accident report from germany. the report states that the driver was traveling 80 kilometers per hour. how many miles per hour was the driver traveling?