<span>Following BEDMAS
4[3+5(18/2-3)-12]+7^3
</span><span>= 4[3+5(18/-1)-12]+7^3
= </span>4[3+5(-18)-12]+ 343
= 4[3+(-90)-12]+ 343
= 4[3+(-90)-12]+ 343
= 4[-99]+ 343
= -396 + 343
= -53
As we can see from the table there is a pattern to the whole data in the table. A closer look reveals that when we multiply the number of students, n by the cost per student, c we get a constant number, 72. Let us see what we mean here:




Thus, the function which models the data is the
.
Now, let us move on to the next part of the question:
If 12 students go on the trip then the cost per student as per this model will be:
dollars=$6
Therefore, out of the given options, the option the correct option is number B.
Just plug in x for -3 so it would be (-3)2+2= -4
Yes a factor is less then the number and the multiple it greater, for example 6 a multiple is 12,24, and so on...