At a local bank, customers must choose a 6-character ID to access their account. The ID can be any combination of digits and letters. For example, 123abc, 000000, and jikgfd are valid choices. Which expression equals the maximum number of IDs that the bank can issue using this scheme?

rdcfgygtfcgvytfgut

Step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated

the answer to this in exact form is 4/35 but in decimal form its 0.1142857

hope this if needed hmu