Step-by-step explanation:



Answer:
For the first one, put the input(0) in the place of x. This would make it look like this, 3x0+5
The x is a times sign, which was added when you add the number.
The rest goes like this,
3x0=0
0+5=5
Ouput= 5
Answer:
n = 40
Step-by-step explanation:
n - 12 = 28
add 12 to both sides to remove the negative 12
n = 28 + 12
n = 40
64 you divide 120 by 75% and get 160 40$ of that is 64