Evaluate the equation. a + 6.6 = 12.6
A. a = 5
B. a = 6
C. a = 18.2
D. a = 19.2

Step-by-step explanation:

subtract 6.6 from both sides and you get the answer

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.