Correct Answer: C
Explanation:
At a certain dinner, a hamburger and coleslaw cost $3.59, and a hamburger and French fries cost $4.40. If French fries cost twice as much as coleslaw, how much do French fries cost?
h + c = 3.59 ------- I
h + f = 4.40 ------- II
f = 2c ------ III
Subtracting I from II
f - c = 0.81 ---- IV
By putting the value of c from III in IV we hwve: f - = = 0.81
f = 1.62