Amika is 4 years old than her brother. in two years she will be twice as old as her brother. what are their ages now?

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

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

Select all of the following expressions that are equal to 2.5.