What do you call this form of quadratic function y=ax2+bx+c? how about y=a(x-h)2+k

In a probability experiment, karen flipped a coin 76 times. the coin landed on heads 32 times. what percentage of the coin flips resulted in tails? round to the nearest percent. a. 58% b. 65% c. 42% d. 60%

Hi, can anyone show me how to do this problem? 100 points for this. in advance

How do you write something in scientific notation?