Shreya and beth each improved their yards by planting rose bushes and ornamental grass. they brought their supplies from the same store. shreya spent $68 on 4 rose bushes and 4 bunches of ornamental grass. beth spent $115 on 11 rose bushes and 2 bunches of ornaments grass. what is the cost of one rose bush and the cost on one bu bunch ornamental grass

Explanation:

Name the variables and build a system of two equations with two unknowns.

1. Variable r: cost of one rose bush

2. Variable g: cost of one bunch of ornamental grass.

3. First equation:

        4r + 4g = 68

4. Second equation:

5. System of equations:

6. Solve the system

a) Divide the equation 1 by 2:

b) Subtract equation 1a from equation 2:

c) Substitute the value of r into the equation 1a:

7. Conclusion:

The cost of one rose bush is $ 9 and the cost on one bunch pf ornamental grass is $ 8.

im pretty sure its

(8,15)

step-by-step explanation: