Beth is paid $225 per week plus a commission of $20 per sale. this week she wants to earn at least $650. if s represents the minimum number of sales that sara needs this week, which inequality represents all the possible values of s?
a) 20s + 225 ≥ 650
b) 20s + 225 ≤ 650
c) 225s + 20 ≥ 650
d) 225s + 20 ≤ 650

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