8.8-3.4=5.4
Just subtract 8-3 and 8-4 and you'll get 5.4
Hope it helps!

Brainliest please if you found my answer helpful! :)
When a report card shows that a student has earned 21 points on a test with a total of 25 points, it can be concluded to state that the student has secured 84 percentage of the total points of the test.
The computation of the percentage of points secured by the student out of the total available points in a test can be done using the generalized formula and the use of provided information into the same as below,
Percentage = Scored Secured / Total Points x 100
Percentage = 21 / 25 × 100
Percentage = 0.84 × 100
Percentage = 84 percentage.
Therefore, the student has earned 84 percentage of total points on a test.
Learn more about percentage here:
brainly.com/question/29306119
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Um, I'd say discrete because it's not important. I'd never say it's continuous.
Step-by-step explanation:
The sum of two opposite interior angles equals an exterior angle
50+?=115
?=115-50=65°
It’s -4 because you need to like distribute then add like terms, etc.