If she made a 90 that means 90 percent aka .90 so multiply that by 60 to get 54 right aka 6 wrong which you could find either by subtracting 54 from 60 or solving for 10 percent bc she got that much wrong and multiply .10x60=6 wrong
20/1.04 = 19.60$
20.00$-19.60 = 0.40$ in change.
The midpoint is (5 1/2, -7 1/2)
Answer:
x ≓ 3.242593855
Step-by-step explanation: