2. On Fridays at the ballpark, a cup of soda costs $2, and each refill costs $0.50. If x represents the number of refills, which of the
following equations represents the amount a person spends on soda?
OA. y = 0.5x + 2
OB. y = 2x + 2.5
OC. y=2x+0.5
OD. y=0.5x + 2.5
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