What’s the awnser to this mathematics equation

Half of 9

So 4.5

Half of 9

So 4.5

2x = 9

2x/2 = 9/2 (divide by 2 on both sides)

x = 4.5

2x = 9

2x/2 = 9/2 (divide by 2 on both sides)

x = 4.5

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.

i got 86 for this

hope this !

if you need an explanation just ask