An employee records the number of prescriptions filled at a pharmacy each hour during an 8-hour period. The table shows the results. The employee spilled coffee on the table, making the entry for hour 2 unreadable. The employee knows that the mean for the data in the table is 21. How many prescriptions were filled during hour 2?

answer:      

step-by-step explanation:

lol we need to see what the question is asking about

step-by-step explanation:

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2

they charge the same amount at 20 minutes.

step-by-step explanation: