Which of the following is a composite number? A. 31 B. 13 C. 61 D. 63

Original conversation

User: Which of the following is a composite number?
A. 31
B. 13
C. 61
D. 63

Weegy: The answer is letter D. 63
63 is divisible by 3, 8, 9, and 21 so it is composite. drako888|Points 77|

User: Will bought 3 college textbooks. One cost $32, one cost $45, and one cost $39. What is the average price of his books? Choose the statement that correctly calculates the average.
A. $32 ÷ 3 + $45 ÷ 3 + $39
B. $32 + $45 + $39 ÷ 3
C. ($32 + $45 + $39) ÷ 3
D. 3 × $32 + $45 + $39

Weegy: The answer is: B. ($32 + $45 + $39) ? 3. The average price is: $38.67. [smile] stickman|Points 6262|

User: If one container holds 55 balls, how many balls will nine containers hold?
A. 495
B. 455
C. 355
D. 395

Weegy: If one container holds 55 balls, nine containers can hold 495 balls.

55 balls * 9 containers = 495 balls

User: In the equation Q – 12 = 89, what is the value of Q?
A. 77
B. 78
C. 101
D. 102

Weegy: The multiple reflection of a single sound wave is a Reverberation. User: In a transverse wave that travels through a medium, the molecules of the medium vibrate
A. in the direction in which the wave travels.
B. at right angles to the direction in which the wave travels.
C. at twice the velocity of the molecules in a longitudinal wave.
D. with smaller amplitudes than the molecules in a longitudinal wave
Weegy: In a transverse wave that travels through a medium, the molecules of the medium vibrate at right angles to the direction in which the wave travels. User: Sound waves can't travel through
A. an elastic material.
B. a liquid.
C. a solid.
D. a vacuum.
Weegy: Sound waves can't travel through a vacuum. (More)

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