So
a be first term and d be common difference
- a+a+2d+a+4d+a+6d+a+9d=17
- 5a+21d=17--(1)
And
- a+d+a+3d+a+5d+a+7d+a+9d=15
- 5a+25d=15--(2)
Eq(1)-Eq(2)
Put in second one
- 5a+25d=15
- a+5d=3
- a+5/2=15
- a=15-5/2
- a=25/2
Still need more information..like a picture
The width of the rectangle is 11.5
Answer:
The answer would be 2,187
1). solution
3³÷3^(-4)
3³×3⁴. ( power sign changes when divide sign change into multiply)
2,187