

Answer: the summation from n equals one to 5 of quantity negative 1 minus 4 times n
Answer:

Step-by-step explanation:
Given

![(x + 7) * (\ ) = [\ ]](https://tex.z-dn.net/?f=%28x%20%2B%207%29%20%2A%20%28%5C%20%29%20%3D%20%5B%5C%20%5D)
Required
Complete the blanks
We have:

Rewrite as:

Cross multiply

Answer:
120th caller
Step-by-step explanation:
120 is the common number by 40 and 30. trust me on this I'm really good at this subject in math.
Answer:
b
Step-by-step explanation: