A scientist hypothesizes the the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The INDEPENDENT variable is * 5 points
the size of the baby alligators
the temperature
the incubator
the gender of the alligator

Can someone me with questions 12 and 13 plz.

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4.0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.