Answer:
Braylen has 15 apps on his phone
Explanation:
Carli has 3 times the amount of apps that Theiss does
So we divided 90 by 3
90 ÷ 3 = 30
Now we divide 30 by 2 to find out how many apps Braylen has, since he has half the amount of apps that Theiss does
30 ÷ 2 = 15
So Braylen has 15 apps