I would say the best answer is a but the whole thing is set up weird
Yes because you would pay less if the 20% was taken off first because it would be a lower amount since your taking a percent of the whole total and not combining the two
p(coin is tail) = 1/2
p(spinner is odd) = 4/7
p(odd and tail) = 1/2 x 4/7 = 4/14 = 2/7
Answer: (A) 2/7
The answer is b. I simply plugged into a calculator, and the first option was on the opposite side of the graph.