In decemberof 2003, the average price for a gallon of regular gas in the united states was $1.50. at that time, what did it cost to buy 12 gallons of gas ?

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!