Please help me in solving for x and y

If a =6, what is the value of 2a(3b + 5c)?

Which of the following is a justification used while proving the similarity of triangles lom and mon

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.