Answer:


Step-by-step explanation:
----------- (1)
-----------(2)
Adding equation (1) and (2)


Substitute y=-4 in equation (1) or (2)


Answer:
A
Step-by-step explanation:
All you have to is multiply 5x20 = 100 and 5 x 10 = 50 Then add and you get 150.
Answer with Step-by-step explanation:
Given

A= 3.14 r^2 = 3.14 * 1^2 = 3.14159
since the R of the circle is r=1 the answer is 3.14159