Answer:
<em>The answer is a = 6.</em>
brand A 7.79. 8 cent brand B 6.83 7 cent
Step-by-step explanation:
better buy brand B you get twice much and they are 1 cent cheaper
187÷24=7.79 /287÷42=6.83
<em>y=x+4 this should be the answer</em>
Just plug in 10^2-7.5^2
To get 43.75
I hope you figure this out.
