The present age of father is double of the age of his son. if the difference of their ages is 25 years. find their age.

A club with nineteen members is to choose three officers: president, vice-president, and secretary-treasurer. If each office is to be held by one person and no person can hold more than one office, in how many ways can those offices be filled?

Lamont bowled 153, 145, 148, and 158 in four games of bowling. a. Find the mean, median and mode.

The length of the side of a square is 7ft. What is the area of the square?

Is 6.6 a rational number

How do I convert 298k to temperatures in Celsius and Fahrenheit

Here are two squares, A and B. The length of the side of square A is 50% of the length of the side of square B

Which expressions are equivalent to 5 (-2k-3) + 2k5 (-2k-3) + 2k5, left parenthesis, minus, 2, k, minus, 3, right parenthesis, plus, 2, k?

What is the percent decrease from $80 to$64 rounded to the nearest percent

Factor 6 z^3/3 + 1 z^1/3

What is 6.245 round to the nearest hundredth?