Answer: a. Diagram B
b. x+2.6=10.4
c. x+2.6=10.4
subtract 2.6 from both sides
x=7.8
d. The solution in the equation represents the amount of water that was in the pitcher prior to Mai poring 2.6 Liters of water in. So there were 7.8 Liters of water in a pitcher, Mai poured 2.6 Liters of water into that same pitchers and the total amount of water in the pitcher was 10.4 Liters.
Answer: 12
To get 12 you multiply 20%×60 and get 12.
Note: When finding the answer to these types of problems, multiply the percent times the number.
Answer:

Grant will make $60 from selling 12 magazines.
Step-by-step explanation:
Let m represent number of magazine sold and A represent amount of money earned.
We have been given that Grant earns $5 for each magazine he sells. So amount earned from m magazines would be 5 times m that is
dollars.
Now, we will equate total amount earned by Grant with A as:

Therefore, our required equation would be
.
To find the amount earned by Grant by selling 12 magazines, we will substitute
in our equation as:


Therefore, Grant will make $60 from selling 12 magazines.