Answer:
5.42
Step-by-step explanation:
PEMDAS
It is this because 7.52-2.9 is equal to 4.62 plus 0.8 equals 5.42.
Using the formula for Required arithmetic mean =
number of terms
sum of the terms
After substituting the values we get=
5
2+4+6+8+10
=
30
=6
I guess it's 63degrees
I hope it will help