Stephen ran 5/10 kilometer. then he ran 20/100 kilometer. how much farther does stephen need to run to complete 1 kilometer?

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Factor the expression using gcf 9b+45

Can you me find the missing length. i attached an image.