Kuri spent a total of $68 on trading cards. his collection contains two types of cards. a pack of trading card a cost $4, and a pack of trading card b cost $7. how many packs of each type of trading card were purchased if the total number of packs is 11

Identify the type of observational study described. a statistical analyst obtains data about ankle injuries by examining a hospital's records from the past 3 years. cross-sectional retrospective prospective

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

What is the slope of the line (-7,2) (4,6)