Answer:
r=1
Step-by-step explanation:
-4 r -10r + -5= -19
-4r + (-10r) + -5=-19
-14r+ -5 = -19
-14r + -5 +5= -19+5
-14r= -14
r=1
Answer:
80
Step-by-step explanation:
I used a calculator to solve
Answer:
0.1-0.2 is a change of 100% as it is doubled.
Area of the large semicircle





Area of the small semicircle





Area of the figure


Answer:
D
Step-by-step explanation: