The drama teacher spends $354 on costumes and microphones for 6 cast members. Each member receives a costume that costs $38 and a microphone that costs $c. How much did each microphone cost? Show an equation using c as the variable and solve

Each microphine cost $21

Step-by-step explanation:

Equation: (38+c) 6 = 354

(38+c) 6 = 354        distribute 6 into 38 and c

38*6 + c*6

 \/        \/

228 + 6c = 354       Subtract 228

-228           -228

6c = 126                  divide 6

÷6     ÷6

c = 21

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step-by-step explanation:

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answer: d.) the total number of protons and neutrons is 15

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