3a+1=3.6(a-1)
Not an identity
Answer:
Step-by-step explanation:
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I am thinking B, because if you think about it you would write it as x+ 8 because he first got x and then he added 8 more to that x and then they tell you how much they recived in those days if you multiply the like in answer D you will get to much and their askign for the total of teh 2 days so you would add them,... Hope this helped
Step-by-step explanation:
it is calculated by chain rule,...