Help me I’m stuck and confused pls help me

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Plz hurry evaluate the expression a+b where a=8 and b=19

Jalen charges $25.50 for every 3 hours of yard work he does for his neighbors. ralph charges $34 for every 4 hours of work that he does. who charges less? opinions: 1.they charge the same amount 2.jalen 3.ralph