2 - 86.2h - 1) = 3.5h - 2.75

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

4+(2+x) can you me solve this problem

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.