Answer:
what grade is this?
Step-by-step explanation:
Step-by-step explanation:
if that's what you mean
Answer:
Ques 16)
We have to simplify the expression:

Ques 17)

Ques 18)
Let the blank space be denoted by the quantity 'x'.

Ques 19)
Let the missing quantity be denoted by 'x'.
