Answer:
What is the average rate of change from x = −4 to x = 1? x= -4 x + 5
Answer:
-9/20 with the given information i believe this is the answer
Answer:
50.2 square cm
Step-by-step explanation:
Diameter = 8 cm
Radius = 8/2 = 4 cm

To get a number to decrease by 21% you multiply it by 0.79 (1-0.21)
r = 0.79