11. ZABE and Z DBE are supplementary angles. If the measure of LABE is 61, what
is the measure of ZDBE?

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?

Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?