I used a calculator and have solved it without. I didn't get any of these answers. HELP

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

The highest point on earth is the peak of mount everest if you climb to the top you would be approximately 29,035 feet above sea level at remembering that amount is 5280 feet percentage of the height of the mountain would you have to climb to reach a point 2 miles above sea level

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu