Which pair of ratios form a proportion?
a.
3 : 4 and 4 : 5
b.
10 : 12 and 16 : 18
c.
7 : 10 and 10 : 14
d.
5 : 8 and 20 : 32

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}.