Which statement about sound is true because it is a mechanical wave?

It can travel through the vacuum of space.

It must travel through a medium.

o

It can travel only through air.

o It cannot travel through a medium.

A Girl Scout is selling cookies. She currently has 3 boxes of Thin Mints, 4 boxes of Tag-Alongs, and 5 boxes of Somoas left. What is the probability that a customer will randomly buy two of the same box of cookie to purchase?

What is the expanded form of 164.38

Order the weights of the donations from greatest to least. 4.3, 5.5 6 1/6, 15/4, 4 3/8

What is the domain and range of the function: s (x) = 20x + 150?

given that triangle abc is equilateral and line bd is an altitude of triangle abc, how do i prove that line bd is also a perpendicular bisector is line ac?

A triangle has side lengths of 14 cm, 48 cm, and 55 cm.

Factor the common factor out of -12+15X

What is the length of one side of a square that has an area of 196 inches

Membership in the Volunteers Club increased by 15% from last year. If the number of members last year was m, complete a simplified expression to represent the number of members this year.

What is the product of 63 and - 59?