Answer:
41/60
Step-by-step explanation:
Convert the fractions into like denominators: 7/30 = 140/600, 9/20 = 270/600
Add: 140/600+270/600 = 410/600
Divide into a smaller fraction: 41/60
67.5
5.32
a^2+b^2=c^2
a^2+4.7^2=7.1^2
a+22.09=50.41
50.41-22.09=28.32
a=5.32
Check the picture below.
Answer: The answer is A.|7 + -2 + 5 + - 8|
|7−2+5−8|
=|5+5−8|
=|10−8|
=|2|
=2
