Simon drives 75 km at an average speed of 120 km/h and then 9 km at 70 km/h without stopping. What is the average speed for the whole journey to 1 dp?

Complete the square to determine the minimum or maximum value of the function defined by the expression. x2 − 12x − 2 a) maximum value at 38 b) minimum value at 38 c) maximum value at −38 d) minimum value at −38

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

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