Select all expressions that are equal to 3⋅3⋅3⋅3⋅3.
3^5
3^4 ⋅ 3
5 ⋅ 3
5^3

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?

Problem ann increased the quantities of all the ingredients in a recipe by 60\%60%. she used 8080 grams (\text{g})(g) of cheese. how much cheese did the recipe require?