Someone help please!

1.5 x 10^6 (A)

Step-by-step explanation: $4,500,000 divided by 1/3 (Stocks), gives us $1,500,000. We need to reach the first digit of 1,500,000 (1) and in order to do that we have to count the number of zeros. Move the decimal place back from the end of 1,500,000 until you reach the first digit (1). That should give us 6 zeros, or (6 times). Now we are left with a simplified version, in other words, the answer is 1.5 x 10^6.

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.

b

step-by-step explanation: