Answer:
C. 21/50 because 21/50 written in a decimal is 0.42
72+72+144 and 144 minus 360 equals 216 so half of 216 is 10. so the top and bottom are 108 degrees.
Answer:
the slope -3, slope meaning rate of change and y intercept is 1.
hope that answers your question
(used desmos to graph, good stuff!!!)
81 - 35+30 (55) = 26 therefore 26cm is ur final answer