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mihalych1998 [28]
4 years ago
6

Please help me it would be very much appreciated!

Mathematics
1 answer:
Alexandra [31]4 years ago
8 0

Answer:

28

Step-by-step explanation:

So in this question, we know that n is now 21. So if we substitute n with 21, we get

                                                -2 +\frac{3}{2}(21 -1)

                                               = -2 + \frac{3}{2}(20)

                                               =-2+\frac{60}{2}

                                               =-2 + 30

                                               = 28

Which is our answer.

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