Admission to the amusement park was $29.50 per person. if x represents the total cost for 3 tickets which equation is true?
a)$29.50+x=3
b)$29.50x x =3
c)$29.50+3=x
d)$29.50 x 3=x

Can someone answer these problems for me

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Hurry im being timed the graph of f(x)=x^3-3x^2+4 is shown based on the graph how many distinct real numbers solutions does the equation x^3-3x^2+4=0 have