An angle with a measure of is formed by two opposite rays.

a. 90°
b. 180°
c. 270°
d. 360°

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

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The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?