Answer:
a
Step-by-step explanation:
Answer:



Step-by-step explanation:
Given

See attachment
Solving (a): 
To solve for
, we make use of:

The relationship between both angles is that they are complementary angles
Make
the subject

Substitute
for 


Solving (b): 
To solve for
, we make use of:
The relationship between both angles is that they are complementary angles

Solving (c): 
To solve for
, we make use of:

The relationship between both angles is that they are alternate exterior angles.
So:

Answer:
0.25
Step-by-step explanation:
2a + b^2
2(3) + 2^2
6 + 4
10
(x-3)/y
((12)-3)/(3)
9/3
3/1
3