Select the correct answer. Which relation is a function? A. X y 4 -2 5 -3 6 -2 7 -3 B. X y 3 10 2 20 3 30 4 40 C. X y -5 2 -5 3 -10 4 -10 5 D. X y 10 15 20 25 8 30 20 35.

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.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points