Answer:
54
Step-by-step explanation:
6x + 5x = 99
11x = 99
x=99/11
x=9
6x = 6x9 = 54
5x = 5x9 = 45
<em>ans: </em><u><em>54</em></u>
this may help you.look it once
Answer:68.27%
TI84
2nd distr
normalcdf(89,97,93,4)