If a tip of 15% is added to the food bill, what is the total on the food bill of $12.95

Twenty-five percent of the customers entering a grocery store between 5 p. m. and 7 p. m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Which equation represents the partial sum of the geometric series?

Which number line represents the solution set for the inequality -1/2x> 24?