A rental car company charges $20.59 per day to rent a car and $0.06 for every mile driven. Abigail wants to rent a car, knowing that: She plans to drive 150 miles.
She has at most $420 to spend.

Which inequality can be used to determine xx, the maximum number of days Abigail can afford to rent for while staying within her budget?

a. 9x+20.59≤420

b. 9+20.59x≤420

c. 9x+20.59≥420

d. 9+20.59x≥420

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.