Give the diagram below, which points are noncoplanar? A. E, F, and G
B. D, G, and H
C. D, F,G and I
D. E, F,G and H
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Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?