I hope this helps you
4plumbers +5helpers =182
5plumbers +6helpers =224
-24plumbers -30helpers =1092
25plumbers+30helpers =1120
1plumbers =28
4.28+5helpers =182
5helpers =70
1helpers=14
Answer: B
Step-by-step explanation:
6 out of 20=what percent?
6/20=x%
percent means parts out of 100
x%=x/100
6/20=x/100
time both sides by 100
30=x
answer is 30% passed
100-30=70
70% is answer
Your answer is B F(x) * (0.5)^x