There are 11 homes in a subdivision & 7 have a security system. Three homes are selected at random. What is the probability one of the selected homes has a security system?

What value of x is in the solution set of –5x – 15 > 10 + 20x?

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

Handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony?