I found a rock that contains 1g of radioactive Radium (half-life = 1600 years). I measure that 15g is no longer radioactive. How old is my rock?

A triangle whose sides are 5,12, and 13 inches are similar to a triangle whose longest side is 39 inches. What is the perimeter of the larger triangle

What are the first 6 nonzero multiples of 5

506,709 in expanded form

We believe that 93 % of the population of all Business Statistics I students consider statistics to be an exciting subject. Suppose we randomly and independently selected 28 students from the population.

You use 5 ml for every one gallon. How many ml do you use for one cup?

Which expressions are equivalent to 3√128x?

In a 56 pound mixture of sand and gravel, 14 pound is gravel. How much gravel is there in a 1-pound mixture?

6,845,309 rounded to the nearest hundred thousand

a rectangular auditorium seats 1118 people. the number of seats in each row exceeds the number of rows by 17. find the number of seats in each row

Whats b plus 11 equals 72