tabby is training for a triathlon . she swims at a speed of 1 mile per hour . she runs at a speed of 6 miles per hour . she wants to figure out her average speed for these two events . what is the correct answer for her ?
"( 1 mph + 6 mph ) / 2 = 3.5 mph correct option is : c"
divide(add(1, 6), const_2)