When a number is decreased by 20% of itself, the result is 104. what is the number?​

On any given day, the number of users, u, that access a certain website can be represented by the inequality 1125-4530 which of the following represents the range of users that access the website each day? u> 95 or u < 155 95> u> 155 u< 95 or > 155 95

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.