Two doctors is blank percent of 25 doctors

What is the common difference in the following arithmetic sequence 7,3,-1,-5

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second

3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)