According to the line graph below, what is the total number of tickets sold? A. 40
B. 145
C. 155
D. 165

Can someone answer these problems for me

Given the following sampling distribution of one mean with a sample size 49, from a normally distributed population, find the population standard deviation, o.79828588912497

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form