I need help on this fast pls help me

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

What is the area of the shaded sector?