Solve the mathematical puzzle. determine the digits of f from these clues. the digits of f are all the same. the sum of all the digits of f is 12. the answer when any two of the digits are multiplied together is also 9. f is a four-digit number.

3,3,3,3

Step-by-step explanation for checking my work:

f are all the same T/F     T

the sum of all the digits are 12 T/F      T

when any two are multiplied together it is 9 T/F    T

all are true so the answer is correct

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.