I'm assuming you mean to list the terms of the expression. Those are mn, -2n, and +8. There are 3 terms there.
The reason why you can’t divide zero us because zero is an undefined number. Dividing is breaking something into group and you simply can't break anything if it's not there.
Answer:
The total amount of gross profit is 1,490,400
Step-by-step explanation:
1242000 x 1.20 =1,490,400
Hope I helped :)
42 and 14
explanation:
x+y = 56
x = 3y
Substitute for x in the first equation:
x + y = 56
x = 3y
3y + y = 56
Combine like terms:
4y = 56
Divide both sides by 4:
y = 14
So if y = 14, and x = 3y, then x = 42.
Now substitute for both x and y in both of the original equations to prove they are the correct values.
x + y = 56
x = 42
y = 4
42 + 14 = 56
56 = 56
x = 3y
x = 42
y = 14
42 = 3*14
42 = 42
So the two numbers, x and y, are 42 and 14.
