Answer:
according to basic proportionality theorem




(-2)^4 = (-2) (-2) (-2) (-2) = 16
so n = 16
<h3>Answer:</h3>
Mean: 17.2
Median: 18
Mode: 18
<h3>Solution:</h3>
Mean: The sum of all observation divided by several observation
- 20+18+13+17+18=86
- 86÷5=
- 17.2
Median:it is the middlemost observation of data arraged in increasing or decreasing order of values
- (13,17,18,18,20)
- (17,18,18)
- (18)
Mode:it is the value that occurs frequently in a set of data
Hope it helps
The runner ran 5/6 then he ran 9/10 more how much did he run in all