Id say |x|=5, that's my guess
Answer: what’s the link about ?
1.)9a+4c=43
2.)4 adults and 4 children
3.)27$
4.)y=.10+40
5.)y=.20x+18
That's all I have so far
(I think 6.) is 193 but I'm not positive)
To find the amount of complete octaves there are on the piano, you must first divide 88/ 12; which is 7.333. Since the question is asking for the amount of complete octaves, you must round down to 7. Your final answer is 7 complete octaves.
5 acute angle 6 obtuse angle 7 right angle