16 different combinations. There are 8 sections on the spinner and 2 sides on a coin. 8 combinations for heads and 8 for tails, which equals 16.
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If it costs 3n+5, you have to plug 7 in for n and solve. 3(7)+5=26 so $26
Answer:
or -0.25
Step-by-step explanation:

Plug in a=5 and b=-2
=
=
=
or -0.25
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Answer:
Step-by-step explanation:
you would add 60 + 90 then subtract it from 180
Answer:
16,21,15
Step-by-step explanation: