Agreenhouse that specializes in growing carnations is divided into sections. the number of plants in each section depends on the number of sprinklers in that section.

there are y(5y − 4) red carnation plants and (9 + y)2 white carnation plants in a section with y sprinklers.

which simplified expression represents the total number of red and white carnation plants in a section with y sprinklers?
5y2 + 18y +77
5y4 + 14y + 81
6y2 + 14y + 81
6y2 + 18y + 77

C.

Step-by-step explanation:

We have been given that the expression represents number of red carnation plants and expression represents number of white carnation plants in a section with y sprinklers in a green house.

To find the simplified expression that represents the total number of red and white carnation plants in a section with y sprinklers, we will add our both expressions.

Upon distributing y on 1st expression we will get,

Upon expanding the perfect square we will get,

Now, we will combine like terms.

Therefore, option C is the correct choice.

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50