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Find the missing value
16 8 80
1 3 10
41 7 90
3 2 ?​

By Adalynn

Find the missing value
16 8 80
1 3 10
41 7 90
3 2 ?​

About the author
Adalynn

find the surface area of a room of length 25m, height 15m and width 5m.​

If the 3 lines ax + ky = la + ma3, bx + ky = 1b + mb3 and
cx + ky = Ic + mc3 are concurrent, then a3 + b3 + c3
equals