4. Answer each question. Show your reasoning. (Show work)
a.
20% of a is 11. What is a?
b.
75% of bis 12. What is b?
14
I
c.
80% of c is 20. What is c?
d.
200% of d is 18. What is d?

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.