Answer:
The value of a and b is given. All u hv to do is just place the values in the places of a and b. The value of a= 3.1 and b= 7.3.
5i) a+b
3.1+7.3
=10.4
ii) b-a
7.3-3.1
=4.2
5 and 6 are both similar. Just place the numbers instead of the letters
6i) x+y
5+7
=12
ii) y-x
7-5
=2
iii) x/y
5/7
=0.714
There u go :D
