Less then 10hrs but more then 9hrs not sure exactly
Percent means parts out of 100
x%=x/100
0.50=0.50/1=50/100=50%
With the true and the right negative
21/4 ÷ 14/9
21/4 × 9/14
189/56
3/3/8
Answer: C
Step-by-step explanation:^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^