5)who ever gets this will get a brainlest

Rounded, is 7.50, or 7.5

Step-by-step explanation:

7.5008695652174.

7.50%.

Step-by-step explanation:

So the percentage of sales tax charged for the sofa was 7.50%.

5.75x = 43.13

x = 43.13/5.75

  = 7.50 percent

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.