Who could help me with some math

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Select all expressions that are equivalent to 2(3x + 7y). question 1 options: 6x + 14y 6x + 7y 1(6x + 14y)

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart