Write −12.405−12.405 as a mixed number in simplest form.

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

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

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.