Amount that trouvaughn paid : $0.80b
ten dollar bill = $10
so $(10-0.80b)
Answer:

Step-by-step explanation:
we have

step 1
Solve the numerator of the quotient

step 2
substitute in the original expression


step 3
simplify

Answer:
d..
Step-by-step explanation:
Answer:
Pete
Step-by-step explanation:
Given that:
Mandy's Estimate :
Number of spins , n = 20
Pete's Estimate:
Number of spins, n = 200
A good probability estimate is one which has narrow margin of error with a high degree of confidence. These two variables are affected by sample size.
A high sample size give a narrower margin of error and increases the confidence level probability
Based on the sample size used by each of Pete and Mandy, we can conclude that, Pete's probability estimate would be better due to its significantly higher sample size.