What is the area of the shaded region?

O 21 mm

O 24 mm2

O 42 mm?

O 48 mm

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

Donald has x twenty-dollar bills and 11 ten-dollar bill. how much money does donald have? write your answer as an expression.

Aphrase is shown read the phrase and give me the answer