Answer:
Hey buddy, here is your answer. Hope it helps you.
Step-by-step explanation:
4.957 something is the answer
<span>Eu preciso de pontos, então você pode manter isso por favor</span>
Simple...
you have:

and

To solve for....

Multiply to remove the denominator-->>

n=12*3
n=36
Then-->>>

Do the same thing-->>

n=-12*3
n=-36
Thus, your answer.
3(7)-4(0)=21
3*7=21-0=21
the answer is D
Answer:
28 students
Step-by-step explanation:
Work backwards.
First, subtract 3:
115 - 3 = 112
Then, divide by 4:
112 ÷ 4 = 28
So, there are 28 math students in his class.