The answer to your question is C because it makes sense
1ml of 80ml bottle: 55/80 = 0.6875 pence
1ml of 50ml bottle: 45/50 = 0.9 pence
If no special offer the first bottle is a better value for money.
Since special offer though, you'd be buying;
50ml bottle £45 + another 50ml £22.5 = £67.5 in
which case 1ml would cost;
67.5/100 = 0.675 pence. Hence buying 2x50ml
bottle would be a better value.
Answer:

Step-by-step explanation:
Area of Parallelogram = Base * Height
Where base = 3.7 cm, Height = 7.6 cm
=> Area = 3.7 * 7.6
=> Area = 28.12 cm^2
Answer:
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Step-by-step explanation:
The lines are perpendicular if their slopes are negative reciprocal of the other.
Since 9/2 is just a reciprocal and not the NEGATIVE reciprocal of 2/9, the lines are NOT perpendicular.