Answer:

Step-by-step explanation:
<em>Hey there!</em>
Look at the image below↓
By looking at the image we can tell the PR expression is
.
<em>Hope this helps :)</em>
Answer:
21 because there is a 1/4 chance and there are 84 questions, so 1/4 (25%) of 84 is 21.
Step-by-step explanation:
The answer is d have a nice day
Step-by-step explanation:
x² + 4x − 4 = 8
x² + 4x − 12 = 0
(x + 6) (x − 2) = 0
x = -6 or x = 2