Given that f = {(1,2),(3,5),(6,8)}, find fo(f·¹) and f-1of. How are they related?​

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

What term makes it inconsistent y=2x - 4

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building