(b) you need to raise a total of $600 for your trip. there are 20 days before you leave. you estimate that you
will be able to sell 15 cans of soda per day. how much should you charge for each can?

You should charge $2 per each can of soda.

Step-by-step explanation:

15*20=300 cans of soda you can sell in 20 days,

600/300=2

step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.