Which ratios form a proportion?

a. 4/9 , 12/25
b.3/7, 18/42
c. 5/11, 20/45
d.5/8, 15/25

Choose a second initial value that is 0.01 greater than the initial value from question 9. iterate it using the function, f, ten times. if necessary, you can round your results to the nearest ten-thousandth.

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

How do you solving the solution of each system using elimination?