Jane is trying to decide how many tv shows she should watch tonight. she gets $10 of value from each tv show she watches. if she watches one show she gives up working on her math homework (which she values at $5). if she watches two, she also gives up her economics homework (which she values at $8). if she watches three then she also has to give up her biology homework (which she values at $12). using marginal analysis, how many shows does she watch? one

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.