The ratio of male students to female students going on a field trip is 4:5. The ratio of students to adults going on the field trip is 8:1. Determine the smallest possible total number of people(students and adults) that could go on the field trip.

Given that abcd is a rhombus, what is the value of x?

In a coastal town, the humidity, measured in grams of water per kilogram of air, increases by 43% for every 1 degree celsius increase in temperature. a scientist observes that the humidity on monday morning is 5.75 grams per kilogram. he wants to know how much the temperature must increase for the humidity to reach at least 49.17 grams per kilogram. let t represent the increase in temperature, in degrees celsius, from monday morning's observation. write an inequality to represent the situation, and use it to determine the desired temperature increase.

Awoman won a 4000-m race with a time of 12.089 min. what was her rate?