Question

Please tell me solution of question 7,8,9,10 and 13​

Answer 1

Answer:

Q7:-

15+8/20+4

23/20+4

23+80/20

103/20

Q8:-

4m2-3mn+8-(-m2+5mn)

4m2-3mn+8+m2-5mn

5m2+8mn+8

Answer 2

Step-by-step explanation:

don't know...............