Rob and amy each improved their yards by planting rose bushes and shrubs. they bought their supplies from the same store. rob spent $100 on 8 rose bushes and 5 shrubs. amy spent $112 on 8 rose bushes and 8 shrubs. what is the cost of one rose bush and the cost of one shrub? rose bush: $7 , shrub: $5 rose bush: $15 , shrub: $5 rose bush: $13 , shrub: $2 rose bush: $10 , shrub: $4 asaappp

Cost of one rose bush: $10

Cost of one shrub: $4

Step-by-step explanation:

1. You must make a system of equation, where is the cost of one rose bush and is the cost of one shrub.

2. You know that Rob spent $100 on 8 rose bushes and 5 shrubs and Amy spent $112 on 8 rose bushes and 8 shrubs, therefore, you have.

3. Apply the Substitution method. Multiply the first equation by -1, add both equations and solve for y:

4. Substitute y into one of the equation and solve for x:

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step-by-step explanation: