In 4 years time a mother will be three times as old as her son. Four years ago she was five times as old as her son. Find their present ages.

How could you calculate 65% of a number explain

A gourmet chocolate bar weighs three-fourths pound. There are 16 pieces on the chocolate bar. How much does each piece weigh?

The ratio of the angles in a triangle are 10: 17 : 25. what is the measure of the smallest angle

Solve for r. You must write your answer in fully simplified form. 11r = - 4

Triangle S T U is shown. The length of T U is 21.3 and the length of S U is t. Angle U S T is 118 degrees and angle S T U is 34 degrees. Which expression gives the exact value of t? StartFraction 21.

15%of $30 as a decimal

The ordered pairs model an exponential function, where j is the function name and e is the input variable. { (1, 10), (2, 50), (3, 250), (4, 1250) } What is the function equation in sequence notation?

Simply and reduce to lowest terms a + [a + b - a - (2a - b) ]

What percentage of a data set is represented as Q1?

Danielle can solve 4 problems in 12 minutes. At this rate, how many can she do in 18 minutes?