Answer:
I think it's 150
Step-by-step explanation:
(8+7) × 10 = 150
Using the quadratic formula, the answers could be A B and D
Answer:
If I had to take an educated guess I'd say 126° but I'm not 100% sure.
<h3>
Answer: Bottom left corner (southwest corner)</h3>

The left endpoint is x = 4, but we don't include this endpoint because of the open hole. We use a parenthesis to indicate "don't include the endpoint"
The right endpoint is positive infinity. We always use a parenthesis with either infinity since we cannot reach infinity
The interval from 4 to infinity is written as
which is like saying 
Algebraically that would be expressed as 2r + 11
The product of 2 and r is 2r.
The sum of 2r and 11 is 2r + 11