How can we help you with this?
Answer:
5
Step-by-step explanation:
you add then all together to get 5
Answer:
45/28
Step-by-step explanation:
Hey There!
They want us to find the tangent of R
Remember in sohcahTOA
t - tangent
o - opposite
a - adjacent
meaning that

The opposite of angle r is 45
the adjacent of angle r is 28
so 
Equation: 0.5x + 8.3
Plug in 12 for x and solve