exam Maths Puzzle Numerical Ability

Here is the problem:

Superman takes off after Lex Luthor, who is 125 miles away. Flying to capture Lex takes superman 210 seconds with the tailwind. The return trip takes 215 se

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exam Other Question

A beauty shop sells for $75,000 and a 22% down payment is made. A 20-year mortgage at 6.5% is obtained.
o Find the down payment.
o Find the amount of the mortgage. Find the add and express in simplest form

2/s + 9/s^2

I think it may be 11/s but am not sure and need help.

Thanks