Mr. Morris bought lunch for the entire class, costing him $80. He left a 20% tip. How much was his total bill?

$96.00

Step-by-step explanation:

if the bill is $80 an there was a 20% tip, that would mean that the tip was $16, and 80 + 16 = 96. the total bill is $96.00

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.

hope i !