Please i need the answer quick you’ll get 20 points for the answer

$4

Step-by-step explanation:

for plan A you can see per minutes it increases 5 cents so for 20 minutes it would be $36

for plan B you install 20 into your equation

c=30+0.10(20)

.10×20=2

2+30=32

therefore you subtract because its asking for the difference

36-32=4

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg