Total sales of jewelry inc. were $12,000,000 two years ago and $13,400,000 last year. if the same trend continues, what are sales likely to be this year to the nearest hundred thousand dollars? (hint: first find the percent increase.)

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Is it greater than or less than7*3_9*2

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.