Me with these ( i have to show work).
•2/3+3m/5=31/15
•-3c-12=-5+c

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much