The correct answer should be B.
However, since these only involve addition, the parentheses do not actually make a difference in the answer.
Answer:
a = 25
b = 100
c = 17
d = 68
Step-by-step explanation:
After calculating for ten minutes, I got 1. B and 2. D
Answer:

Step-by-step explanation:
you can also replace the plus sign and put ±
hope this helps and is right :)
Answer:
Felicia is correct
Step-by-step explanation:
There are 180 degrees in a triangle
48.3 + 33.6 = 81.9
subtract 81.9 from 180 to get the measure of the last angle
180 - 81.9= 98.1
meaning Felicia is correct