The question asks to write an equation to <u>calculate the cost of repairing the car</u>, this cost will include the cost of the parts which is <em>fixed</em> plus the cost of the labor of the mechanic which will <em>depend on how many hours it takes,</em> as the mechanic charges per hour of labor.
Repair charge = cost of mechanic labor + cost of parts
we have arc XV = 68°∠YUV = 36° we know that The measure of the external angle is the semidifference of the arcs that it covers. therefore ∠YUV =[arc VY-arc XV]/2