(a) Expand and simplify (a×a) – (a - b)(a + b). (b) Hence write down the value of
(6730×6730) – 6728 x 6732 without using a
calculator.​

Which of the layers of the earth has the following three characteristics? i. it is a solid outer layer. ii. it is between 3 and 30 miles thick. iii. it is separated into plates. a. the outer core b. the inner core c. the mantle d. the crust

Following the new zealand wars, the british government

The largest employer of cartographers is the