-5 3/4 - 3 1/2 = A. -8 2/3 B. -9 1/4 C. -2 1/4 D. 2 1/4

Hi! The answer to your question is B. -9 1/4

Step-by-step explanation:

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-9 1/4

Step-by-step explanation:

-23/4 -3 1/2

-23/4 -7/2

-23/4-7/2x2/2

-23/4-7x2/4

-23-7x2/4

-37/4=-9 1/4

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.