Answer:
Graph D.
Step-by-step explanation:
The line goes through the origin, and therefore shows direct variation.
Answer:
Step-by-step explanation:
Given
Measurement of box 
suppose Length 
Breadth 
height 
Volume of Cuboid
Volume of Packaging box 

Answer:
The answer is 10 12/85 Hope you pass!
Lets get all the information we need first.
A week has 7 days, you practice 30 min each day, so in a week you will practice a total time t of 30 min for 7 times, that is:
t = 7day(30 min/day)
t = 210 min
So in a week you will practice a total of 210 minutes.