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When a duck flies, it beats its wings about 23 times in 10 s. How many times will it beat its wings in 2 min?

There are 800 students enrolled in Bracebridge and Muskoka Lakes Secondary School. The ratio of girls to boys is 6 :4. How many girls go to this school?

A rectangle has a length of 2×2 + 5x + 1 and a width of 3×2 + 4x + 3.  What is the perimeter of the rectangle?

Josephine is running a marathon. The table shows her distance at various time intervals. If she continues at this pace, what will her time be at the 42 km mark? Time (min) 20 40 60 80 100 Distance (km) 3.5 7 10.5 14 17.5

Simplify 6×2 + 4y + y2 – 9y.

A box of donuts has 6 donuts and costs $8.49. What is the unit rate? 

Determine the value of “n” in the following ratio:  2 :6 = 8 :n

A recipe that serves 4 people uses 3 potatoes. How many potatoes are needed to serve 20 people?

Which expression represents the volume of a cube with a side length of 6x?

The structure labeled A is a ________________