Xavier is working as a lifeguard over the summer, for which he is paid $9 per hour. he did some research on federal income tax and determined that he must pay 10% of his income in federal income tax, 12.4% in social security tax, and 2.9% in medicare tax. write a linear function representing xavier's gross income (earnings before taxes) in terms of the number of hours (x) he works.

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?