Answer:
a) 910
b) 828100
c) 144320
Step-by-step explanation:
a. ∑y
This is the sum of all values of y. So

b. (∑y)^2
This is the square of the sum, so the square of 910, that we found in the previous item.
910² = 828100
c. ∑y^2
This is the sum of the squares of each amount spent. So

the ratio of apple juice to coconut milk to orange juice is:
45:100:20 = 9:20:4
Answer:
-55
Step-by-step explanation:
4 divided by 6 times 5 equals 3.333