The table shows information about the numbers of hours 30 children spent on their tablets one evening
number of hours frequency
o 1 2 3 a) Find the class interval that contains the median
b) Workout an estimate for the mean number of hours

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

Draw a scaled copy of the circle using a scale factor of 2