One leg of a right triangle is 12 inches, and the measure of the angle opposite that leg is $30^\circ$. what is the number of inches in the hypotenuse of the triangle?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

An appliance store sells lamps at $95.00 for two. a department store sells similar lamps at 5 for $250.00. which store sells at a better rate