WHAT PERCENT OF 200 IS 28 HELP M

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.

What percent of the circle below is shaded?

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76