Kevin's history grade will be determined by the average of 4 tests. he received a 76, an 85, and a 74 on the first 3 tests. he n
2 answers:
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Answer:
Step-by-step explanation:
From the problem statement, we can setup the following equations:
where is the current age of Shobos and
is the current age of his mother.
Substituting the first equation into the second will allow us to solve for :
Substituting this value into the first equation gives us the age of the mother:
Answer:
$420.25
Step-by-step explanation:
Total earnings of the week