Which should Jill do to increase her credit score? Open new credit card accounts.
Use at least 70% of her credit limit.
Pay off her credit card debt.
Skip a credit card payment.

Pay off her credit card debt.

Explanation:

A credit score is indicative of one's history of loan repayments.  A high credit score communicates that the borrower has been timely in paying their loans.  It tells that an individual has been responsible when using credit facilities.

A low credit score says that the customer is often late in repaying their loans. If Jill wants to improve his credit score, he should clear all his outstanding debts.

its ii) i did this test

explanation:

a manufacturer of printed circuit boards uses exponential smoothing with trend to forecast monthly demand of its product. at the end of december, the company wishes to forecast sales for january. the estimate of trend through november has been 200 additional boards sold per month. average sales have been around 1000 units per month. the demand for december was 1100 units. the company uses α = 0.20 and β = 0.10. make a forecast including trend for the month of january.