X: adult, y:child
(1) 8x+7y=168
(2) 14x+14y=308 -> 7x+7y= 154(divide both side by 2)
(1) -(2) ->x=$14->y=$8
Answer:
Step-by-step explanation:
20.50-5.75 for supplies
The answer 24.75
1cm = 10mm
x cm = 740.2 mm
you would have to multiply 740.2 by 10.
The decimal point would move once to the left.
so
74.02 cm = 740.2 mm
:)