In a group of 10 students, 7 are 13 years old and 3 are

17 years old. What is the average (arithmetic mean) age of these 10

students?

Which letter has rotational symmetry Y X B M

What is the volume of a cereal box that is 2 inches thick, 12 inches high and 10 inches wide? a. 24 cubic inchesb) 72 cubic inchesc) 120 cubic inchesd) 240 cubic inches

Mrs. hensen cataloged a group of incoming library books in 8 hours. mr. taylor can catalog the same number of books in 4 hours. mrs. phillips can catalog them in 6 hours. how long would it take if they all worked together?

Fifeteen more than half a number s 9

Which of the objects shown below could be sliced to create a circular cross-section? cone, sphere, cylinder, cube, triangular prism (equilateral base), right pyramid (square base) choose all answers that apply.

Contestants dance and I dance-athon rest for the same amount of time every hour a couple rests for 25 minutes in five hours how long did the rest in 8 hours?

If AD=6x+10 and CD=2x+12, find the length of AC

Determine which rational humber is greater by rewriting each pair of fractions using their LCD. 2/15, 4/25 2/5, 4/11

Jesus purchased cookies for a party. He bought 11 cookies for $.51 each and 12 cookies for $.62. How much money did he spend on cookies?

Fir a walk-a-thon a sponsor to give a flat tree of 5$ plus 2$ for every mile m you walk