How do you do this + what's the answer?

Is it greater than or less than7*3_9*2

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2