Surds ! please help :(

1foot = 12 inches; 1 yard = 3 feet

For what value of x does 4x = (1/8) x + 5?

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236