Rico wants to divide 45 cans of soda into two groups so that the ratio is 4 to 5. how

Total number of equal parts:
4+5= 9

Each part is:
45 cans/ 9 parts= 5 cans/part.

Group 1 has 4 parts, so group 1 has:
5 cans/part* 4 parts= 20 cans.

Group 2 has 5 parts, so group 2 has:
5 cans/ part* 5 parts= 25 cans.

Group 1 has 20 cans, group 2 has 25 cans~

All except for b, because polynomial functions can be quadratic, cubic, witticisms and etc only non negative exponents of negative it is not a polynomial function