Eleven children and twenty-six adults bought tickets to the hockey game. Which expression represents the total cost if c represents the cost of a child’s ticket and a represents the cost of an adult's ticket? help m
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step-by-step explanation: a reaction is first order. if the initial reactant concentration is 0.0200 m, and 25.0 days later the concentration is 6.25 x 10-4 m, then its half-life is:

answer: the answer is 127 degrees

step-by-step explanation:

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sorry i got nothing

step-by-step explanation: