How do you write -5 2/3 +3 1/4 +(-7 1/3) as a fraction in simplest form

Josephine has a great garden with and area of 2x2 + x - 6 square feet

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?

Find the distance between the point (-3,-4), and (see the picture below)