Susan's test scores are 93, 85, 88, and 90. What does she need to score on the next test to raise her average to 90?

Question 6 options:

94

90

100

92

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The 3 by 3 grid below shows nine 1 cm * 1 cm 1 cm*1 cm squares and uses 24 cm 24 cm of wire. What length of wire is required for a similar 20 by 20 grid?

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