Chris made at least one error as she found the value of this expression.
2(-20) + 3[5/4(-20)] + 5[2/5(50)] + 4(50)
Step 1: 2(-20) + 3(-25) + 5(20) + 4(50)
Step 2: (3 + 2)(-20 + -25) + (5 + 4)(20 + 50)
Step 3: 5(-45) + 9(70)
Step 4: -225 + 630
Step 5: 405
Identify the step in which Chris made her first error. After identifying the step with the first error, write the corrected steps and find the final answer.
