Answer:
Total revenue = 10395$
Step-by-step explanation:
Price of a bicycle = 315
Sold bicycles = 33
Multiply
Total Revenue = 315 * 33 = 10395
Total revenue = 10395$
Control group.
A single or double blind study means that either the participants or the researchers or both does not know who is in the control group and who is in the experimental group. This, there has to be a control group
Do the (68+7) = 75 then do 75+93=168