PLZZZ HELP!! Using the Quadratic Formula
Solve each equation with the quadratic formula.
8n^2+4n-16=-n2

1. the following set of data represents the number of waiting times in minutes from a random sample of 30 customers waiting for service at a department store. 4 5 7 10 11 11 12 12 13 15 15 17 17 17 17 17 18 20 20 21 22 22 23 24 25 27 27 31 31 32 a. determine the number of classes and class interval.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.