Johnny and Mary Do Maths

1.  The equation of a curve is y = 10 – x 2 + 6 x .  a) Express y in the form a – ( x + b ) 2 , where a and b are integers.      ...

Here is a seedling. It has two leaves which collect sunlight for photosynthesis.   Some of the sugar created is used for the plant’s meta...

Johnny, Mary, and Ifran each have $100. There are only two banks in town. However, they both offer 5% simple interest. Johnny puts his ...