The shape below is formed from a rectangle measuring 18 cm by 24 cm from which a rectangle of length 8.6 cm has been removed.
Work out the perimeter of the shape.
24 cm
18 cm
8.6 cm

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

Which of the following describes the symmetry of the graph of y = x3?