PLEASE HELP IN TEST RIGHT NOW ! NO FAKE ANSWERS ! in the given circle, find the measure of each angle or arc

Jack lives on a farm and has a large backyard. the area of his rectangular backyard is of a square mile. if the width of the yard is of a mile, what fraction of a mile is the length of the rectangular backyard?

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?