-x + 8=25

What does the x represent

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

What are the coordinates of the point that is 1/3 of the way from a to b? a (2,-3) b (2,6)

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.