The answer is A. U basically divide the price with the amount of item and pick the cheapest one :)
Answer:
first option
Step-by-step explanation:
Given 2 secants to a circle from an external point, then
The product of the external part and the whole of one secant is equal to the external part and the whole of the other secant, that is
PQ(RP) = PS(TP)
Answer:
the answer is 
Step-by-step explanation:

hope this helps :)
Try using Symbolab, I use it all the time it gives the correct answer and it gives good explanations.
The first one is B and the second one is A