Answer:
13
Step-by-step explanation:
11.50x7=80.50
5x13=65
80.50+65=145.50
Answer:
x=20
Step-by-step explanation:
The correct answer here is D
<span>First we define Charlene's the average time, which is (8.4 + 8.6 + 8.3 + 8.5 + 8.7 + 8.5)/6 = 8.5. Normal time is 8.5/1.1 = 7.7. Charlene is faster than normal.</span>