1 answer:
I dont know how to solve this but heres a suggestion: Use PEMDAS
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Ok. <span>well the answer 1/2 the hour you paint 1/2 in 1/4 so add 1/2+1/2=1 so it is 2 so 1/4+1/4 </span>
What you have to do is add up the amount of total grade scores. 76+99+86+x. You get 261+x. you have to get 99% or higher
This should be the answer.
Answer:
The number of protons is the answer
there are 4 A and 3 B.
so the ratio is 4 : 3
