Find the ninth partial sum of infinite sumnation 3i-4

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

What value of x will make the triangles similar by the sss similarity theorem?

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.