76÷4= ; x=19, you divide 76 by 4 because if he is 1/4 then it would be a group of one of the 4's, thus saying ehen you divide 76 by 4, it equals 19, so he is 19 years old, you could also do 19×4 and 22×4 to see which equals 76.
In 5 weeks they sing 280, in 7 weeks they sing 392, and in 6 weeks they sing 336. For this problem you have to figure out how days are in a week n multiply that by the number of songs they give you n then you have to multiply that by how many weeks they give you n then u keep repeating these steps until you ate done with all of your problems n you get your answer
2) C
3) B
4) C
6) I'm pretty sure its D but it could be C