Also, I hate school, but I do love simple math lol
Answer:
Q.1
The Answer is Option B) 2 × 10-¹²
The answer to your question for 1 is 10
we are given

step-1: Simplify expression inside parenthesis
we will combine like terms
so, firstly we will take common denominator



step-2: Distribute 1/2 inside


step-3: Combine like terms

We can find common denominator




we can also write it as in mixed form

so, we will get

option-C.............Answer