Can you slove any one question ​

1)

but

=> a = 2

    b = -1

2)

Step-by-step explanation:

it happens during combustion and impacts the environment because the plants and trees take in that and it can cause them to die.

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.