Walt consumes strawberries and cream but only in the xed ratio of three boxes of strawber-

ries to two cartons of cream. at any other ratio, the excess goods are totally useless to him. the

cost of a box of strawberries is 10 and the cost of a carton of cream is 10. walt's income is 200.

which of the following is true? ( show work or explain, i already know the answer, just need to know how to get there)

(a) walt demands 10 cartons of cream.

(b) walt demands 10 boxes of strawberries.

(c) walt considers strawberries and cartons of cream to be perfect substitutes.

(d) walt demands 12 boxes of strawberries.

(e) none of the above

suppose, due to favorable weather, the crop in 2012 is 330 tons. in percentage terms, how much bigger is the 2012 crop over the 2007-2011 average?

One question from a survey was "how many credit cards do you currently have? " the results of the survey are provided. complete parts (a) through (g) below. click the icon to view the survey results. (a) determine the mean number of credit cards based on the raw data. the mean is 3.113.11 credit cards. (type an integer or a decimal. do not round.) (b) determine the standard deviation number of credit cards based on the raw data. the standard deviation is 1.9111.911 credit cards. (round to three decimal places as needed.) (c) determine a probability distribution for the random variable, x, the number of credit cards issued to an individual. x (# of cards) p(x) x (# of cards) p(x) 1 0.280.28 6 nothing 2 nothing 7 nothing 3 nothing 8 nothing 4 nothing 9 nothing 5 nothing 10 nothing (type integers or decimals. do not round.)

Who is not spending wisely? erika goes shopping and saves her receipts. she totals how much she spent and writes it down. mia needs to buy a new pair of shoes because she joined the soccer team. she looks at newspaper ads to find the best price. lauren has been thinking about getting a puppy for a long time. she walks by the pet store at the mall and decides to get a puppy. erin makes a purchase online using a credit card. she knows that she can pay the entire bill when it arrives.