Answer: the numbers were negative so he needed to add the positive numbers to that equation (I think sorry if I’m wrong)
Step-by-step explanation:
Answer:

Step-by-step explanation:
The first term of the sequence is

To find the second term add
to the first term;

To find the third term add
to the second term;

To find the fourth term add
to the third term;

The first four terms are

Answer: x=-3
Step-by-step explanation:
7x+5-5=-16-5
7×/7=-21/7
X=-3
Angles in straight line add to 180 degrees
180-142=38
180-133=47
180-38-47=95
180-95=85 degrees
B
Answer:
theres no image u need an imgae
Step-by-step explanation: