The answer is c, all others can be ruled out.
Answer:
t = 6 hours
Step-by-step explanation:
D = r x t
1920 = 320t
divide both sides by 320:
t = 6 hours
Prime: 3,17,31
Composite: 10,24,38
Prime numbers can only be divided by one and itself, while composite numbers can be divided by a number other than one and itself.
You cannot draw a triangle with two right or two obtuse angles; the total measure of the angles in any triangle is 180 degrees.
