2. Train A meets Train B at the station at 7 a. m. Train A was late by 1 hour 15 minutes and Train B was early by 35 minutes. What is the scheduled
time of their arrival?​

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

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