卂几丂山乇尺
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7) 8hours
8) 10 pizzas
9) 13 packets
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EXPLANATION .:
_____(7)______________
Stacy's earning per hour babysitting
= 12$
Thus on Friday to earn 36$,
she would have worked 36/12 = 3 hours
On Saturday she earned 60$,
thus the time she worked = 60/12 = 5 hours
So the total time Stacy babysited on both days = 3+5 = 8hours
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Total ounces with Marco = 147
Ounces required for 1 pizza = 13
Ounced required for 1 breadstick = 2
Now when he has already made 3 breadsticks thus he would have used 3×2 = 6 ounces
So the remaining ounces = 147-6 = 141
Hence he can make 141/13 = 10.8 or 10 pizzas.
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Mr.Dundford gives 6 pencils to each student => for 30 students the pencils required would be 30×6 = 180
Now when he had already 24 pencils Thus the remaining = 180-24 = 156
Also there are 12 pencils in a packet
=> packets required = 156/12 = 13
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