69.9 is exactly 3 standard deviations away, which means that 78.9 is +3 (more than 3) standard deviations
So the answer is 78.9
The second answer is right because when you multiply -2 by 7 and -y it should be -14 and 2y
20/2.5 = 8
So 8 movies can be shown in 20 hours.
Answer:
Two numbers that when you multiply them and add them would give you 234 and 31 would be:
18 and 13
18*13=234
18+13=31
Hope this helps ;)
