Answer:

Step-by-step explanation:
here is your answer
Calculation steps:





The researchers should flip a coin to decide independently for each subject, to randomly assign the cola recipe for each subject
Apex :)
Answer:
there may be 16 but I am not sure
15% of £70= £10.5
Expenditure =£24+£10.5=£34.5
Net amount raised =gross amount - Expenditure
=£70-£34.5=£35.5