Two friends practice taekwondo in the same class. The age of the older friend is three times that of the younger. The sum of their ages is eight more than twice the age of the younger. Find the ages.

How can you write 9.85 in expanded form?

This list shows how many hours twenty batteries lasted when they ran continually in a flashlight. 78 31 47 51 16 58 60 10 30 40 46 63 65 10 93 22 13 47 64 93 What is the mean, median, and mode of the battery life data? a. mean: 47 median: 46.

The area of a living room is 24 square yards if the width is 12 feet what is the length of the living room in yards?

Consider U = x is a positive integer greater than 1. Which is an empty set? x x ∈ U and 2x is prime x x ∈ U and 2x can be written as a fraction

The sum of the least and greatest of 3 consecutive integers is 98 what is the lowest linterger

Write an equation in standard form for the line described. through (7,9), parallel to x+6y=9

What is the solution to this equation and explain your reasoning. 4 (x+7) = 38

The second of two numbers is 4 times the first. Their sum is 50.

Elsa ran 7 out of 10 days. What percent of the days did she run?

Find the average rate of change for the given function from x = 0 to x = 4. Graph of f of x equals negative one-half plus 2