Answer: In 4 minutes he will make 5 portraits
Step-by-step explanation:

Answer:
x = 11
Step-by-step explanation:
• All interior angles in a triangle add up to 180.
• The square in the triangle represents 90°
90 + 45 + 1 + 4x = 180
136 + 4x = 180
4x = 180 - 136
4x = 44
x = 11
Irrational would be the correct answer
The slope means the depth per second