Answer:
18 21 24 24 =87 maybe trying to help
f = (f1 f2) / (f1 + f2)
f(f1 + f2) = f1 f2
f f 1 + f f 2 = f1 f 2
f1 f2 - f f2 = f f1
f2 (f1 - f) = f f1
f2 = (f f1) / (f1 - f) <==== solution
Answer:
A is correct
Step-by-step explanation:
Because if you imagine a number for Toby like 720. His would double while violet's will only go by 20
19 is the answer for this question
