O. ramon earns $1,735 each month and pays $53.10 for electricityto the nearest tenth of a percent, what percent of ramon'searnings are spent on electricity each month?

If he uses $53.10 on electricity, all you have to do is 53.1/1735. This is because 53.1 is how much he spends out of the total which is 1735 which makes it the percent of money he spends on electricity. 
3.1 %