What do well-defined bands on a metamorphic rock indicate A.
minimal changes due to heat and pressure

B.
moderate changes due to heat and pressure

C.
substantial changes due to heat and pressure

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

If f(x)=x+7 and g(x)=1/x what is (fog)(x)

Tom drove 206 miles in 3.9 hours. estimate his average speed.