An otter weighs 7.4 kilograms. How many grams does the otter weigh? Use the number of zeros of the product when multiplying a number by a power of 10 to help you. 740 grams
7,400 grams
74,000 grams
74 grams

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?