21%
Billy invests £800 for 5 years in a savings account.
By the end of the 5 years he has received a total of £96 simple interest.
Work out the annual rate of simple interest.

One month, a music site observed that 60% of the people who downloaded songs from its site downloaded q sam's latest single. the equation below represents this information, where x represents the total number of people who ddownloaded songs from the site that month: x = 0.6x + 384 how many people who downloaded songs from the site that month downloaded q sam's latest single?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial