How do you solve this?

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

The trigonometric ratios sine and secant are reciprocals of each other

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?