Answer:
X= 1
Step-by-step explanation:
2, + the 2 her brother gives her is too high, its 4.
which means we go lower.
0 can't be right, because 0 + 2 = 2, not 3.
lets try 1.
1 + 2 = 3.
So that means X = 3.
Answer:
OPTION C
Step-by-step explanation:
We know that 
Also, 
Using the above two results, we can say that:

(Using (ii) result)

Hence, OPTION C is the correct answer.
Answer:
1.66 cans or 1.6 rounded.
Step-by-step explanation:
1 can = 240ft
2 cans = 480ft
480 divided by 240 = 1.66666666667.
Rounded number = 1.66 and or 1.6