Can someone help me pleaseee!

What is the equation of the graph below? y=sec(x)-4

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.

If chord ab is congruent to chord cd, then what must be true about ef and eg?