Work out the area of a rectangle with base, b = 5.3mm and height, h = 4mm.

21.2 mm²

Step-by-step explanation:

Area of rectangle = base x height.

A(r) = b x h

Plug in the corresponding numbers to the corresponding variables:

A(r) = 5.3 x 4

A(r) = 21.2

21.2 mm² is your answer.

1 + (6 / x - 1)

step-by-step explanation:

divide using polynomial division.