Consider a variant of the IS-LM model studied in class, where Investment, I = I0 + b1*Y - b2*r, and the demand for money, L(r, Y) = m0 + k*Y - h*r. We know with certainty that a tax increase must cause which of the following? a. a decrease in the interest rate and an ambiguous effect on investment.
b. an increase in the interest rate and an upward shift in the LM curve.
c. no change in output if the Fed simultaneously pursues expansionary monetary policy.
d. a decrease in the interest rate and an increase in investment.

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends > a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Anew firm is developing its business plan. it will require $615,000 of assets, and it projects $450,000 of sales and $355,000 of operating costs for the first year. management is reasonably sure of these numbers because of contracts with its customers and suppliers. it can borrow at a rate of 7.5%, but the bank requires it to have a tie of at least 4.0, and if the tie falls below this level the bank will call in the loan and the firm will go bankrupt. what is the maximum debt ratio the firm can use? (hint: find the maximum dollars of interest, then the debt that produces that interest, and then the related debt ratio.)a. 41.94%b. 44.15%c. 46.47%d. 48.92%e. 51.49%

John is a journalist he went to a product demonstration for a new computer some of what he heard was informative while the rest was meant to persuade consumers to buy the product which two statements in the excerpt are persuasive rather than informative