What fraction is equivalent to 123.5℅

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

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.