In the first 100 pages there are 10 pages with numbers 40-49 ( that is total of 11 4's) and another 4 in the units, 10's , 20's, .... 90's ( not including 40's) That is total of 9 4's.
So in first 100 pages there are 20 4's.
therefore there are 20 4's on pages 101-200 and another 20 4's on pages 201-300.
On pages 301 to 352 there are 15 4's.
answer is 3*20 + 15 = 75.
The answer is 18h^4 - 3h^2+5h
Area=84 m^2
area of the triangle= 1/2*4*7=14
the area of the other triangle is also 14.
area of rectangle=8*7=56
56+14+14=84 m^2
Do you still want it as a fraction or a decimal?
If you want it as a fraction:
54/100= 27/50
72/100=36/50=18/25
90/100=45/50
In decimals:
54/100=0.54
72/100=0.72
90/100=0.90
