Question

What is the first incorrect step?

A Angelina did not make a mistake. Her work is correct
B Angelina first made a mistake in Step 3. The formula she should have used is an = 0n-1 + d.
Angelina first made a mistake in Step 4. When she distributed the - 7 to the -1, she should have gotten +7
D Angelina first made a mistake in Step 6. In order to find the 41st term, she should have plugged 40 into her equation.

Answer 1

I think it’s A because it’s says angeline did not make a mistake while the other point are describing or guessing the mistake she made