Prove that if in a right angled triangle, the altitude on
thehpothenus is drawn then the two triangles so formed are
similar. produce the pythagoras theorem for this.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

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