12. As part of a science project, Becca measures the width of various seashells that she finds on the shoreline. The table
shows the differences between the actual width of several
shells and the average width of that type of shell. Becca
measures a shell and finds that it is inch thinner than the
average width of that type of shell. Between the differences
of which two shell types is the difference of the last shell
that Becca measured? Explain your reasoning.
4

Steve is scuba diving near his home in maui. at one point he is 100 feet below the surface. represent this number with a negative number. if he descends another 5 feet, what negative number will represents his.

James wants to promote his band on the internet. site a offers website hosting for $4.95 per month with a $49.95 startup fee. site b offers website hosting for $9.95 per month with no startup fee. for how many months would james need to keep the website for site a to be a better choice than site b? define a variable for the situation. write an inequality that represents the situation. solve the inequality to find out how many months he needs to keep the website for site a to be less expensive than site b. using words, describe how many months he needs to keep the website for site a to be less expensive than site b.

What is the value of the expression below? (81^2)^1/8