In scientific notation, what is the sum of 2.3 x 10^-3 and 5.4 x 10^-4

In which source of water would a wave travel the fastest? o ice o cold o room temperature o hot mark this and return save and exit next

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

Which graph has a rate of change of zero