Nicole and kim each improved their yards by planting daylilies and ivy. they bought their supplies from the same store. nicole spent $99 on 9 daylilies and 7 pots of ivy. kim spent $144 on 9 daylilies and 12 pots of ivy. find the cost of one daylily and the cost of one pot of ivy.

!

the cost of one daylilies is $4

the cost of one ivy is $9

Step-by-step explanation:

Let x represent the cost of one daylilies.

Let y represent the cost of one ivy.

Nicole and Kim bought their supplies from the same store. Nicole spent $99 on 9 daylilies and 7 pots of ivy. This means that

9x + 7y = 99 - - - - - - - -1

Kim spent $144 on 9 daylilies and 12 pots of ivy. This means that

9x + 12y = 144 - - - - - - - - -2

We will eliminate x by subtracting equation 2 from equation 1, it becomes

- 5y = - 45

y = - 45/-5 = 9

Substituting y = 9 into equation 2, it becomes

9x + 12 × 9 = 144

9x + 108 = 144

9x = 144 - 108 = 36

x = 36/9 = 4

your answer would be b

step-by-step explanation:

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.