Between the time I KO woke up and lunchtime the temperature rose by 11 then by the time he went to bed the temperature dropped it by 14 right in addition expression for the temperature relative to when IKO woke up?

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.