El papá de Raúl mide 74 metros de altura. si Raúl mide 1/3 de altura de su papá ¿ cual es la altura de Raúl ?

Ineed to learn how to solve this problem

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?