David has 3 candy bars. He wants to cut each candy bars into halves. How many 1/2 sized pieces will he have?

Solve the linear expression 5 (-3.4k-7) + (3k+21)

Mary has to choose between a job and learning French during summer break. What will be the opportunity cost if she wants to study French? o having the opportunity to study French losing the opportunity of a summer job paying for the French lessons

at a small school, one male and one female are selected to represent the student body at the PTSCA meetings.

Mindy buys 12 cupcakes. nine of the cupcakes have chocolate frosting and the rest have vanilla frosting. what fraction of the cupcakes have vanilla frosting?

Solve for the variable: 3n - 8 = 22

How do I solve 42:227

Your lunch consists of a tuna sandwich, a banana, 2 apples, a chocolate chip cookie, a juice box, and a little container of Cheetos. You randomly grab one of the items for a mid morning snack.

Solve for x 3 [3x _1 ]_10 = 8 + 5x

Find the quotient. 13) 11,089

The ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years. Approximately what percent of the students are between 14 and 18 years old? a. 24.17% b. 62.47% c. 30.85% d. 93.32%