The answer to a8 of the sequence will be 8. I found this out by multiplying the subtraction value (.25) by the number in the sequence needed (8) to get 2. Then, I subtracted the starting number with 8 to get 8 (10-2 = 8). Hope this helped :)
The area of the square= bxh = 6x6= 36 The area of the rhombus is 4/5 the area of the square so 36x 4/5 = 28.8 Area of rhombus = basexheight 28.8= 6x height Height = 28.8/6 Height =4.8