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Shelly evaluated this expression using the order of operations, but she made a mistake. Which step includes Shelly's mistake?
2(3 - 8) +5 - 1
Step 1
- 2²-5) + 5-1
Step 2
- 4(-5)+5 -1
Step 3
= -20+5 -1
Step 4
- -20-4
Step 5

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

emily solved for a part when she should have solved for the whole. 875,000 should be the numerator of the equivalent ratio. 70 x 12,500 is 875,000. so the answer is 100 x 12,500 which is 1,250,000.