Please answer A number line is shown below. The numbers 0 and 1 are marked on the line, as are the two other rational numbers a and b

Will a - 1 be positive or negative? explain.

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).