Which set of real numbers best describes the solution set for the inequality? 3x 1 =< 5
a. all real numbers less than or equal to 2
b. all real numbers greater than or equal to 2
c. all real numbers greater than 2
d. all real numbers equal to 2

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

Jamie is hiking up a small mountain. he climbs up at a constant rate of 300 feet/hour until he reaches the peak at 1,500 feet. after that, he hikes down at the same rate to the base of the mountain. the equation that models jamie’s elevation, e, after t hours is e = . jamie’s elevation will be 600 feet after hours and after hours.

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?