Answer:
250+23x=y
Step-by-step explanation:
x represents the amounts of jerseys the team buys. Once that amount is known they will multiply. 
y is the amount of money spent, or the sum.
Apply the negative exponent rule, so move the expression to the denominator to make the exponents positive.
Your answer is:
1
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r^7 + s^12
Answer:
C
Step-by-step explanation:
3 1/2 x 2 = 7