A father is 3 times as old as his son. Fifteen years ago, the father was 9 times as old as his son was then. Find their present ages.

A student council has 6 seniors, 5 juniors, and 1 sophomore as members. How many ways can a 3 member committe be formed that includes one member from each class

What is seven eights multiplied by 16

What is 918.59 rounded in the ten place?

Karen says every equilateral triangle is acute is this true

A 12-ft-by-15-ft swimming pool has a 3-ft-wide no-slip surface around it. what is the outer perimeter of the no-slip surface?

As men and women age, their risk of death increases. There are also health issues that can greatly impair older citizens' abilities to participate in activities and travel.

Bob bought 3 packs of model xars. he gave 4 cars to ann. bob has 11 cars left. how many model cars were in each pack

Which function models the area of a rectangle with side lengths of 2x - 4 units and x + 1 units? What is the area when x = 3?

Alexa started a business making bracelets. It takes 5 minutes to make each bracelet. How many brackets can she make if she works 569 minutes?

What is the answer to 0.5 (4a+6b)