The cost would be $582.40!
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Answer:
Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.
Explanation:
Marks received by Marta in four tests = 86, 84, 97 and 89
Let mark received in fifth test be x
We have average of five test is more than or equal to 90
So we have

So Marta need to score at least 94 to receive an average of 90 or higher considering all five tests.
Answer:
Expression
Step-by-step explanation:
2,3, and 7 are coefficient .
x and y are constant
H= 4x+12y+2
Not sure if the question is asking you to use distribution but that's really all you can do with this