Why does this have to be hard

Iwill give brainliest only if your correct the words subsequent and submerge both contain the prefix sub. based on this information, what does the prefix sub most likely mean? a) under or secondary b) true or verifiable c) tricky or difficult d) around or centered on

Which number line correctly shows 0.8 + 0.3?

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?