Answer:
Joe's father is 45.
Step-by-step explanation:
3x-x+2=4
58.8 I divided 412/7 and it gave me a decimal and random numbers :(
<u>ANSWER TO PART A</u>
The given triangle has vertices 
The mapping for rotation through
counterclockwise has the mapping

Therefore



We plot all this point and connect them with straight lines.
ANSWER TO PART B
For a reflection across the y-axis we negate the x coordinates.
The mapping is

Therefore



We plot all this point and connect them with straight lines.
See graph in attachment
Answer: B. 53
Step-by-step explanation: