What is the measure of angle R? Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.

Answer b.adi admin hope this

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;

It would most likely be 9: 00 am. give brainliest