In a group of 10 students, 7 are 13 years old and 3 are

17 years old. What is the average (arithmetic mean) age of these 10

students?

Solve 3t - 7 = 5t, then 6t =

The scale of a drawing is 2 cm : 1 mm. Is the scale drawing larger or smaller than the actual object? Explain.

Two-thirds of a local soccer team is girls, 3/5 of the girls on this team have brown eyes. What fraction on the soccer team are boys?

Which fraction is NOT equivalent to 4/9?

Is the function even, odd or neither? f (x) = |x| + 1 Your answer: Even Odd Neither

A group of scientists studied the effect of a chemical on various strains of bacteria. Strain A started with 6000 cells and decreased at a constant rate of 2000 cells per hour after the chemical was applied.

How can I tell if a triangle with side lengths 10, 24, and 26 is a right triangle?

Determine whether the statement is always, sometimes, or never true: 1) A horizontal line is parallel to the x-axis

15% of what number is 1?

Does parallel lines meet to form an acute angle?