Answer:
21x²
Step-by-step explanation:
hopefully A is a typo
513/2=256.5
which means 256 and 257 are the answers
If the train travels 744 miles in 3 hours then to determine the unit rate the train is traveling per hour you have to divide the miles by the hours, in this case (744 miles)/(3 hours). The final result concludes as 248 miles per hour.
10 think about it it’s 60s and it’s in the ten’s place because 10,20,30,40,50, and 60
Solve for the x-max or h :\

plug it in to equation to get k:/

-8+16+3=11=k

solve for a by pluging (0,0)
then a= -11/4