Does anyone understands this ? if so me ❤️

4. Nicole sold 6 magazines for every 5 magazines Lauren sold
so ration magazines sold between Nicole to Lauren" 6:5

6 + 5 = 11

total 165 so 165/11 = 15

15 * 6 = 90
15 * 5 = 75

Nicole sold 90

5.
a. 7:15 and 28:50
No, an equivalent ratio would be 7:15 and 28:60

6. new ratio of Honors to regular is 7:4. 
If 77 in Honors then i would be 44 in regular 

7* 11 = 77
4*11 = 44

7.
150 binders total
48 are red
150 - 48 = 102 are not red

ratio of red to not red
48:102 = 8:17

ratio not red to total
102:150 = 17:25

8. 

6 girls in swimming club, 5 girls in art club, so ratio= 6:5
If 75 girls in art club, how many in swim club?
             75/5 = 15
             so 6*15 = 90
there will be 90 girls in swim club

a. ratio blue to green chairs 7:8, if 252 blue, how many green
        252/7 = 36
       so 36 * 8 = 288 green chairs

if 252 blue, will be 288 green chairs