Write the number equal to 2 tens 15 ones

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

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?