A three-layer chocolate cake costs $24 and serves 16 . What is the cost per slice?

Hi there!  

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I believe your answer is:  

$1.50

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Here’s why:  

Assuming that the cake has one slice per person (16 slices):

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Each slice should cost $1.50.

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Hope this helps you. I apologize if it’s incorrect.  

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.