Joe gets 90% right on a quiz with 20 questions. How many questions does he get right?
20
18
9

Answer the questions in the attachment. a rescue helicopter is at point a and a rescue boat is at point e. the helicopter pilot spots boats in distress at points d and c, with angles as marked in the diagram. figure abce is a rectangle. the altitude of the rescue helicopter, represented by ae, is 5000 feet.

Find the slope of the line below . enter your answer as a fraction or decimal. use a slash mark ( / ) as the fraction bar if necessary

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?