Three women, Camille, Serena, and Cathy are going to rent an
apartment together. They will each pay an equal share for the
apartment. Cathy needs to figure out what her share will be each
month. She knows that the total each month will be 940 dollars for
rent, 130 dollars for heat and electricity, and 34 dollars for basic
telephone service.

Step-by-step explanation:

Cathy needs to know the total.  That means adding each charge together.  So, 940+130+34=1104.  Each roommate will pay one third of this total cost. So divide by three

1104/3=368

Cathy will pay $368 each month.

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.