Angie completes 80% of her homework problems before basketball practice. She was assigned 30 problems total. How many problems were completed before basketball practice? Possible answers... Kerrie’s solution

Angie completes 80% of her homework problems before basketball practice. She was assigned 30 problems total. How many problems were completed before basketball practice?

Possible answers...
Kerrie’s solution is correct.
Kerrie incorrectly determined 10% in Step 2.
Kerrie incorrectly determined 25% in Step 3.
Kerrie incorrectly combined the solutions from Step 2 and Step 3 in Step 4.

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