What is the LCD of 3/10 and 4/5

If f(x)=2x-6 and g(x)=3x+9, find (f-g)(x)

Given: and prove: what is the missing reason in the proof? given transitive property alternate interior angles theorem converse alternate interior angles theorem

Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool. how far is the ball from the opposite edge of the pool