Suppose that 18 inches of wire costs 54 cents
At the same rate, how much (in cents) will 39 inches of wire cost?
cents

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.

If twice a number is at least three less than four times the number, which of the following are true? let n represent the number.