Heath and jaydon liked birdwatching and kept track of how many different species they saw at each site. in one day, they visited 5 different sites and saw an average of 7 species at each site. the day before, they saw 30 different species at 6 different sites. how many fewer species did they see at each site the day before?

Frank has $66.50 in his account on sunday. over the next week, he makes the following changes to his balance via deposits and purchases: day debit ($) credit ($) monday 60.33 80.75 tuesday 54.45 wednesday 49.20 15.00 thursday 35.40 friday 16.85 75.00 saturday 80.56 on what day does frank first get charged an overdraft fee? a. wednesday b. thursday c. friday d. saturday select the best answer from the choices provided a b c d

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Math i have no idea how to do a and b