Describe how to round 3.987 to the nearest tenth

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?