Today a father's age is five times his son's age. Exactly three years ago, the sum of their ages was 30. How old is the son today?

Vality X + (7 + 2x) < - 3x?

A city has a population of 300,000 people. suppose that each year the population grows by 5%. what will the population be after 9 years?

A scientist wants to measure out 0.31 liters of a liquid, but she can only find a beaker that measures volume in centiliters. How many centiliters should she measure to equal 0.31 liters?

When vanessa's 3ds is fully charged it lasts for four hours. if she only charged it three-quarters full, how long would it last?

Multiply. Write your final answer in simplest form! 3/4 • 2 1/2 • 4/5 =

Of the first 103 elements how many have just one letter in their symbols

Mike has $136.00 to spend on his ticket into the amusement park he spends 25% of that money on his ticket into the park. How much does Mike have left to spend?

A triangle is formed with side lengths of 7 inches, 24 inches, and 25 inches. is the triangle a right triangle

How many minutes are there in 6 3/4 hours

A researcher posts a newspaper advertisement offering $20 in exchange for participation in a short study. The researcher accepts the first five people who respond to the advertisement.