Due to an ice storm, the price of oranges increased from $0.69 a pound to $1.99 a pound from one year to the next. what is the percent of increase, rounded to the nearest tenth?

a. 188.4%
b. 118.4%
c. 18.8%
d. 65.3%

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

100 points, hi, i’m not sure what to do here, the data doesn’t seem to be quadratic .? can anyone me, in advance

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics