If angle FBC equals 10 X -9 and then we’ll see B equals 4X +15 found angle FBE

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.

Answer meranesia;

Answer (b) they're often rural migrants with no title to housing or rights to established businesses

Ibelive it  is a yazoo tributary