If Df = 9x -39, find EF

Find the condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a.p.

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart

Angie has saved 3/8 of the amount she needs to buy a bike. clive has saved 7/10 of the amount he needs to buy a skateboard. what is the difference between clive's and angie's fraction of savings?