Can u help me with the math problems plz ?

6. B
9. B

For number 6, 10 vans times 12 students is 120 students. 432 - 120 = 312. 312 students divided by 6 buses is 52. To check if it right I tried Middle School B. 5 vans times 12 students is 60. 164 students - 60 = 104. 104 divided by 2 buses equals 52. So 12 students is the right answer.

For number 9, 35*2=70 and 15*5=75. 70+75=145.

The amount of sugar you need is proportional to the amount of lemonade mix you use.

Step-by-step explanation:

Cups of sugar                               Packets of lemonade mix

    1/3                                                             1

    1                                                                3

    3                                                               9

Ratio of packets of lemonade mix to cups of sugar in all cases is 3.

That is

               

Let us take packets of lemonade mix as L and cups of sugar as S.

We have

                       L = 3 S

So the amount of sugar you need is proportional to the amount of lemonade mix you use.