Factorise p2 - q2

I need help finding the answer please

Determine the relationship of ab and cd given the following points

The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9