What is the greatest common factor of x4 and x3? (1 point)

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?