Tickets for a football match are sold at $30 for EACH adult and $15 for EACH child. A company bought 28 tickets. (i) If x of these tickets were for adults, write in terms of x
(a) The number of tickets for children.
(b) The amount spent on tickets for adults
(c) The amount spent on tickets for children.
(ii)Show that the TOTAL amount spent on the 28 tickets is $ (15 +420)

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

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .