Que distancia recorrio un avión que viajaba a 750 km/h despues de2h y me dia de vuelo datos formula y despejes sustitución resultas

Ialready know the answers to these questions and they are on the attachment. but i just need to know why that answer is the correct one. plz asap! this is for a report that i need to email by 10!

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

Which example best describes a reflex action? a. eating food when hungry b. coughing when the throat is irritated c. bending down to lift a heavy object d. going for a walk outside