Hamid's soccer game will start at 11: 00 a. m., but the players must arrive at the field three-quarters of an hour early to warm up. the game must end by 1: 15 p. m.

hamid says he has to be at the field at 9: 45 a. m. is hamid correct? explain.

my brother doesn't understand things like this when i explain them to him.

If the game will start at 11:00 A.M., but the players must arrive at the field three-quarters of an hour early to warm up, it refers to 8:45 a.m. Why? If we start to count in 11 backward and start to trace the three-quarters, it shows that 10:45, 9:45, and 8:45 are the three-quarters. So Hamid statement that he has to be at the field at 9:45 A.M is not correct.  

Ican't do any of the other stuff, but i can get you started. the answer, i believe, is $2.50.