Line r cuts a pair of parallel lines. One of the elght angles created measures 90°. Which statements about the angles are true? A. All the angles are congruent.
B. Only four of the angles measure 90°.
C. All the angles are right angles.
D. Only the vertical angles are congruent.
E. All the interior angles are congruent.

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Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?