exam Maths Puzzle Numerical Ability

Nolan finishes a 3.5 mile race in 21 minutes. Nolan waited for ben at the finish line for 5 minutes. Laura had finished the race 7 minutes ahead of Ben. How long did it take Laura to run the race?

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exam Other Question

ten years from now, sofia will be three times as old as she was eight years ago. how old is sofia now? Find the axis of symmetry.
y=x^2+5x�7
I am coming up with 0 (zero)as my answer and that is not one of the
answers on the test. Can you assist me? Please show me the work so I can
see where I am going wrong.
Thanks