Karena makes x dollars per hour working at the grocery store. She makes y dollars per hour working at the library. One week she worked 9 hours at the grocery store and 12 hours at the library. Which expression represents her total earnings for that week?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Find the commission on a $590.00 sale if the commission is 15%.