3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.
shift 4 units up, and 1 unit left.
it will translate f(x) = 3^x to g(x) = 3^(x+1) + 4
16.9 times 2.85