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∅

Use this data in the problem below. follow the steps carefully. round to the nearest tenth. lot 3: week 1: 345 week 2: 340 week 3: 400 week 4: 325 step 1. jim enters the data and calculates the average or mean. step 2. jim calculates the deviation from the mean by subtracting the mean from each value. step 3. jim squares each deviation to remove negative signs. step 4. jim sums the squares of each deviation and divides by the count for the variance. step 5. jim takes the square root of the variance to find the standard deviation.

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?