For security purposes I regularly change my six-digit passcode for internet banking. I always choose a code that is made up of three different two-digit square numbers (i. e. square numbers
between 10 and 99), with the sixth digit the same as the first digit.

-Which two digits never appear in any of my passcodes?

-How many different passcodes can I use?

The sum of the six digits of my current passcode is also a square number.

-What is my current passcode?

what the question so we can you out

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.

the first option i believe

step-by-step explanation: