A bank requires that its customers create a PIN to access their account. The PIN must be 1 letter followed by 3 numbers. How many unique PINs are there?

26,000

Step-by-step explanation:

There are 4 places to be filled.

_ _ _ _

Now we put in each place the number of possible characters that can go there.

26 10 10 10

Finally we multiply all the numbers together.

26 * 10 * 10 * 10 = 26,000

26,000

it should be a and d. lmk if i'm wrong xd

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers