1. 2(a + 6) - 12 - a = 19 simplify then solve

2. -(2a + 3) + 3 + 9a = 14 simplify then
solve

3. -3(a - 5) + 7a - 15 = 16 s then s

4. 5(a - 1) + 8a + 5 = 78 sts

5. 3a + 2(a - 6) + 12 = 15

Enter the missing numbers in the boxes to complete the table of equivalent ratios of lengths to widths. ? 18 8 ? 10 30 12 ?

Which shows the pre image of triangle xyz

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem