Hi I could use some help with these questions please your work for each thank you! :) 3) Solve: 6 + (^5√245-2x) = 7
7) (-3x^5+11x^4+33x^3-26x^2-36x-6)/(x^ 3+6x^2-3x-5)
11) Simplify: (tan9x-tan5x)/(1+tan9x tan5x)
13) Verify: sin(180°-∅)=sin∅

Cassie is traveling 675 miles today to visit her brother and his family. so far, she has stopped for gas three times. at the first stop, she put in 7.1 gallons of gas and paid $23.79. at her second stop, she put in 5.8 gallons of gas and paid $19.08. and, at the third stop, 6.6 gallons and paid $20.39. at which stop did casey pay the most for gas?

For each proportion find the unknown number x 1/5/8=×/15

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.