ASAP PLEASE PLEASE HELP LIFE OR DEATH SITUATION

Brian pays £180 per week in rent.
His landlord decides to increase the rent by 5%.
How much rent does he pay now?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Factor the polynomial expression x6 – x3 – 20

21 type the correct answer in each box. if necessary, round your answers to the nearest hundredth the vertices of abc are a(2,8), b(16, 2), and c(6,2). the perimeter of abc is units, and its area is square units