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.

An item costs $36. The price is increased by $15, then reduced by $15. Find the percent of increase and the percent of decrease. A) The percent of increase is about 42%, whereas the percent of decrease is about 29%.

How do you find the volume of a cylinder when you know the radius and height

Kyle is filling a 25-gallon gas tank at a rate of 10 gallons per minute. What is the domain of the function that represents the volume of gas y in the tank after x minutes?

What is the opposite of - 64? A. 46 B. - 46 C. - 64 D. 64

Which expression completes the statement to form a true equation? 2 + 4² = ? 25 9² 2³ + 9 3² + 9

Mr. Price earns $350 per week working in an appliance store. In addition, he earns 3% commission on all of his sales. Last week, he sold $3, 800 worth of appliances. What was Mr. Price's total income for the week? A) $114 B) $236 C) $464 D) $556

Rewrite g (x) = x2 - 5x + 3 in vertex form.

Approximately one out of ever 250 people in the United States is currently serving in the military. If the United States population was 327,200,000 people, about how many people are currently serving in the U. S.

How do you write. 625 as a fraction

What is 780000 hours in days?