Julie is a math tutor in the academic center. she charges $210 for the first 7 hours of tutoring and $20 for each additional hour of tutoring. if she earned $410 tutoring 1 student, how many total hours did she spent tutoring the student?

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?

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

Joanie wrote a letter that was 1 1/4 pages long. katie wrote a letter that was 3/4 page shorter then joagies letter. how long was katies letter