A carpenter bought a piece of wood that was 0.2 meters long. Then she sawed 0.1 meters off the end. How long is the piece of wood now?

Mustafa contributes 11% of his $67,200 annual salary to his 401k plan. what is his pretax income

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

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?