Which of the following is incorrect? O Income effect can be zero If consumer consumes two goods, both of them can be normal goods. OA giffen good can be a normal good Substitution effect can be zero

Please see below. I need help with these. Note this goes together.

. Matilda is downloading music and videos from an online site. She is currently buying three music downloads that cost $3 each and two video downloads that also cost $3 each. The table below indicates what she reports as the marginal utility of the last music download and of the last video download in this combination of purchases.      Quantity Price per Download MU per download Music downloads 3 $3 60 Video downloads 2 $3 45   As an assignment for her Microeconomics course, Matilda used the marginal utilities that she gave to her 3rd music download and her 2nd video download to complete the Experiment Tally Sheet below. Her available budget was $19.00.   Downloads of mu (score) from 1 to 100 Price of each $3.00  Money spent on  Downloads of  mu (score) from 1 to 100 Price of each $3.00 Money spent on  Total Money  Total Budget  music mu mu/$ music videos mu mu/$ videos Spent Remaining 1st ? ?…

given the following informationon quantity consumed of cheese and total utility for Carl answer the following can you please help to check my answer. thanks qty (in oz)       tu          mu 1                       50          0 2                       70          20 3                       85          15 4                       95           10 5                       90            5 a) what is the marginal for each addtion ounce of cheese - see above b) at a price of $16 an ounce, how many ounces of caviar should carl purchase to optimize his satisfaction? my answer 2 c) what is his conusmer surplus at this optimal level of consumption? (can you help me solve this I see too many diffrence equation for this very confuse)