Forty
40 x 0.05 = 2.00
80 5p coins.
100
7 pounds and eight pennies
100 times 5p = £5
£6.45p
4 and 1/2
29 Ways: 20(1p) 18(1p),1(2p) 16(1p),2(2p) 14(1p),3(2p) 12(1p),4(2p) 10(1p),5(2p) 8(1p),6(2p) 6(1p),7(2p) 4(1p),8(2p) 2(1p),9(2p) 10(2p) 4(5p) 3(5p),2(2p),1(1p) 3(5p),1(2p),3(1p) 3(5p),5(1p) 2(5p),5(2p) 2(5p),4(2p),2(1p) 2(5p),3(2p),4(1p) 2(5p),2(2p),6(1p) 2(5p),1(2p),8(1p) 2(5p),10(1p) 1(5p),7(2p),1(1p) 1(5p),6(2p),3(1p) 1(5p),5(2p),5(1p) 1(5p),4(2p),7(1p) 1(5p),3(2p),9(1p) 1(5p),2(2p),11(1p) 1(5p),1(2p),13(1p) 1(5p),15(1p)
14n^2 - 33np -5p^2 =14n^2 -35np+ 2np -5p^2 .. (mid term breaking) = 7n(2n-5p) + p(2n-5p) =(2n-5p)(7n+p) here you go you are done =)
two thousand20 = £1200 = £102,000 = £100
5p
5p+5p
19 + 11 = 30.