Christine is participating in a 4-day cross-country biking challenge. she biked for 66 ,62 ,47 and miles on the first three days. how many miles does she need to bike on the last day so that her average (mean) is 60 miles per day

65 miles

Step-by-step explanation:

the average is found by adding all the variables then dividing by the amount of variables so

66 + 62 + 47 + x divided by 4 = 60  

x= 65

the correct answer is b. negative exponential growth.

step-by-step explanation:

you can tell it's an exponential function because it decreases rapidly then levels out and never touches the x-axis.

it is negative because the y-axis decreases as the x-axis increases.

therefore it is a negative exponential growth graph.

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step-by-step explanation: