In your class, you have scores of  89, 75, 82, and 86 on the first four of five tests. to get a grade of upper b, the average of the first five tests scores must be greater than or equal to 80 and less than 90. a. solve an inequality to find the least score you can get on the last test and still earn a upper b. b. what score do you need if the fifth test counts as two tests?

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

What are the solutions of the equation? z^2 + 11z + 24 = 0 a. 8, -3 b. 8, 3 c. -8, -3 d. -8, 3

In an improper fraction, is the numerator equal to, less than, or greater than the denominator