Can u pls help me with this question asap

What is the smallest integer n such that n\sqrt{2} is greater than 20

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

27 is what percent of 108? 27 is % of 108