200+40=240
each train cost 10
take 240/10=24trains
Answer:

Step-by-step explanation:
Use the inverse cosine function.



Answer:
Rotational symmetry 1
Step-by-step explanation:
You will get only one rotational symmetry when you turn 360
Answer:
The answer is 45
Step-by-step explanation:
Answer:
Equation: 
Step-by-step explanation:
Slope = 4/3
Y-intercept = -3
Therefore;
Equation: y = mx + b
Equation: 
Hope this helps!