Rob has -180 points in a game. He gains one-fourth of his points back on his next turn, and gains back an additional one-fifth of his remaining points on his second turn. What is Rob's score at the end of the two turns?

PLEASE SHOW HOW YOU GOT IT. I literally have tried everything and don't understand for some reason.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

The probability that a tutor will see 0, 1, 2, 3, or 4 students is given below determine the probability distribution's missing value.