Determine the perimeter of the following figures .
a) 15 cm
b) 28 cm
c) 10 cm
d) 30 cm

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project

What is the value of the product (3-2i)(3+2i)?