Le Ann téléphone à sa mère. le weekend passe elle - à sa mère

Aperson travels 35 km in 0.4hrs, followed by 53 km in 0.6 hr. what is the average speed

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

Plz ! what does it mean for an allele to be dominant?