I have no idea how to do this.
2 answers:
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The expression is telling you to proceed as follows:
- Pick some number
- Pick some number
- Compute the square of
- Multiply it by 4
- Subtract
from this result.
So, first of all, there's no point in fixing , because x doesn't appear in the expression. As for the evaluation, let's follow the aforementioned steps with fixed values:
- Pick
- Pick
- Compute
- Multiply it by 4:
- Subtract
from this result:
we know that
we are given 2.5L
so, to find 2.5L into mL, we will have to multiply both sides by 2.5
now, we can simplify it
so, option-C.............Answer