Joan is an electrician. for each job he charges $32 an hour plus a call-out fee of $35. a) joan does a job for mr. lee it takes him 2 and 1/2 hours .how much does he charge mr. lee.

$35 × 2.5 hours = $80

$80 + $35 (call out fee) = $115 (total)

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm

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