Solve and write in fraction simplest form

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Find the value of x for which line a is parallel to line b

Last month, leonhard euler's watch kiosk at the mall had total sales of $9,489. merchandise totaling $225 was returned. the goods that were sold cost leonhard euler's $5,481. operating expenses for the moth were $992. what was the gross profit on sales?