Answer:
Explanation:
a. To write the statement "25 is to 75 as 50 is to 150" as a proportion using fractions, we can set up the following equation:
25/75 = 50/150
b. To write the statement "40 is to 90 as 8 is to 18" as a proportion using fractions, we can set up the following equation:
40/90 = 8/18