If an investment has a 25% probability of returning $2,000, a 25% probability of returning $4,000, and a 50% probabiof returning $3,000, the expected value of the investment is $???

Consider the graph of the exponential function y=3(2)×

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's