What is the steps to solving this equation |4-z|+10=1

Twelve friends shared 8 small pizza equally. how many pizzas did each person get?

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?

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b