A bakery sells 50 loaves a day of a particular bread at $1.50 a loaf. Research indicates that, for every 10- cent increase in the price, two fewer loaves would be sold. An equation for the daily revenue is = 0.2 2 + 2 + 75, where x represents the number of 10-cent increases. a) Use the equation to find the number of 10-cent increases that will result in a daily revenue of $80.00. (5 marks) b) What is the price of a loaf of bread when the daily revenue is $80? (2 marks) c) How many loaves of bread are sold when the daily revenue is $80? (2 marks)

Frank used 45 minutes of peak time and 50 minutes of non-peak time on his

cell phone last month. His bill was $37.25. His friend Julie used 70 minutes

of peak time and 30 minutes of non-peak time on his cell phone in the same

month. Her bill was $46. What were the peak and non-peak rates? (

[2:31 PM]

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[2:31 PM]

To determine the profit per student, P dollars, a student tour

company uses the function = 0.6

2 + 36 440 where

n represents the number of students taking the tour.

a) Determine the number of students that

will give the maximum profit per student & the

maximum profit per student. (5 marks)

b) Determine the least & greatest numbers

of students that should be accepted for the

company to make a profit. (

[2:31 PM]

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[2:31 PM]

The playing surface in the game of curling is a

rectangular sheet of ice with an area of about

225 m2

. The width is about 40 m less than the

length. Find the approximate dimensions of the

playing surface.

[2:32 PM]

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[2:32 PM]

A telephone pole is secured with a cable as shown. The cable

makes an angle of 70 with the ground and is secured 8 m from the

bottom of the pole. A second cable is attached from the top of the

pole and secured to the ground 3.5 times as far from the pole as

the first cable and on the same side. What is the length of the

second cable to the nearest tenth of a metre?