160 is 100% of 160, 480 is 4 times that. So 400%
Answer:
c. it converges, it has a sum
27-48x^4= 3(9-16x^4)
Because 3 is the GCF
X = y + 5
-y + x - x = y - y + x + 5
-y = x + 5
y = x - 5
Add the amount of choices, and divide by the number of customers surveyed.
40 + 32 + 8 + 20 = 100
40 customers were surveyed
100/40 = 2.5
The average number should be D) 2.5
hope this helps