I would say A.
I hope this helps!
Where is the question?? I'll be glad to answer in the comments once the question is given. Hope to hear from you!
Answer:The expressions for the payment made to Mary are,
(Monday) 90 = 15m + b
(Tuesday) 62 = 8m + b
where m and b are the fee per student and the base fee, respectively. Solving for m and b, the values are 4 and 30.
The equation that represents Mary's earning is
y = 4x + 30
For 20 students,
y = 4(20) + 30 = 110
For Lisa's earnings,
y = 8x + 15
Substituting 20,
y =8(20) + 15 = 175
Thus, Lisa would earn more than Mary by $65.
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Answer: 0
Step-by-step explanation: Good luck! :D
I dont know for a fact but it could be 0.70710678118 but im not sure