So start with subtracting 12 and 8 to get 4. You know it takes 2 hours to sketch 8 of the 12 which leaves the 4 left. There are half the strips so, it will take half the time. In the end, it will take them 3 hours.
Answer: D
Step-by-step explanation:
Since it is subtracting x from 20. D tells the change from 20 dollars after buying the notebook or x.
A is 20 + x
B is 20/x
C is 20x or 20 * x
D is 20 - x
Answer: 700
Step-by-step explanation: 2800 kg / 4 trucks = 700 kg per truck
First you treat 1x-.30x as 1-.30=8.96 then you get .7x=8.96 and devide 8.96 by .7 to get 14.09 rounded