Answer:
3 times as great
Step-by-step explanation:
The most amount of water is 3/4 full
The least amount of water 1/4 full
To get from 1/4 to 3/4, you multiply by 3:

(I made 3 into 3/1 to show how you multiply across easier)
Answer:
not a function
Step-by-step explanation:
If 30% of his collection is 12 cars, then we can use the fraction
30/12=100/x
x=40
Answer:
14 cm
Step-by-step explanation:
One side of the composite has a length of 6 and the other side has a length of 8.
If we add these two numbers, we'll get the missing side length of the rectangle
6 + 8 = 14 cm