Aseven digit number has a zero in the ones place a six in the 10,000's place and an eight in the millions place and five in each of the remaining places what is the number

How do you determine if an ordered pair is a solution to a given equation?

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

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project