The function C(x)= 15.50x+11 represents the cost of attending a concert based on x tickets bought. What is the cost if you buy 12 tickets?

step-by-step explanation:

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step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

if you was gonna solve for a, a is a   < -12