The stem-and-leaf plot shows the test scores for a chemistry class. how many students had a score less than 82 points? 231215

12

Step-by-step explanation:

A Stem and Leaf Plot is a particular table in which each data value is split into a "stem" (the first digit ) and a "leaf" (the last digit).

The given stem-and-leaf plot shows the test scores for a chemistry class in which , the numbers less than 82 are 52, 64, 66, 70, 71, 74, 76, 78, 78, 78, 80, 8 1

Therefore, the number of students had a score less than 82 points = 12

you would need to know all the numbers that are on there

step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°