An atom with a atomic number 6 would have how many protons?

Which of the following equations is equivalent to x/3-6/x=1

F. a fair coin is thrown in the air four times. if the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss? a. 0 b. 1/16 c. 1/8 d. 1/2

2f(x)= x+3 if 4 < x < 8 2x if x 28 2