Answer: it is A that right
8x +9 = 6x + 21 where x = number of chairs in each row
2x=12
x=6
sub back into original equation 8 x 6 + 9 =57 chairs
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Step-by-step explanation:
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Answer:
16
Step-by-step explanation:
If shes out for 3 hours, times 2 by 3, 2x3 then they have a fee of 10 at the beginning then you add that on to 6 then you get 16. ( Sorry if I'
m wrong this is just how I was taught )
