Simplify -(10)-1 into a fraction

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?