Tan finished 3/5 of 45 math problems. each math problem took him 1 4/5 of a minute to complete. at this pace, how much more time, to the nearest minute, will the rest of the problems take him to finish

Factor the polynomial expression x6 – x3 – 20

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?

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.