D= {xlx is a whole number}
e = {xlx is a perfect square between 1 and 9)
f = {xlx is an even number greater than or equal to 2 and less than 9}
which of the following is euf?
a. {2, 3, 4, 5, 6, 7, 8}
b. (3, 4, 5, 6, 7, 8)
c. (2, 4, 6, 8)
d. {4}

Even numbers >=2, and <9 are` 2, 4, 6, 8.

Perfect square (1;9) is 4(2^2).

EUF = {2, 4, 6, 8}

Step-by-step explanation:

The scale from a map to actual distance is 2.5 cm to 620 mi. The distance on the map between Chicago and Boston is about 3.5 cm. What is the approximate distance, in miles, between Chicago and Boston? Show your work.