Answer:
40
Step-by-step explanation: Total distance = 60 miles
Total time = 30 / 30 + 30/60 = 3/2
Avg. speed = 40.
Angle a = 60
given that all angles of a triangle added together must equal 180
x = -20
-20+80=60
do it again for the other angle measurement
60+60+40=180
therefore, angle A is 60°
C.
4 (x+7) = 38 represents the tape diagram correctly.
113.04 is the volume
V = pi x r^2 x h
3.14 x 2^2 x 9 = 113.04
