In one month, jillian made 36 local phone calls and 20 long distance calls. what was her ratio of local calls to long distance calls for that month?
a. 3 : 2 b. 9 : 4 c. 9 : 5 d. 2 : 1

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?