A store sells a 28 oz. bottle of shampoo for $1.96. It also sells a 22 oz. bottle of shampoo for $1.32. Which bottle is the better deal?

The 28 oz. bottle of shampoo is the better deal because you'd have it longer than you would have the 22 oz. bottle. The bad thing is that you have to pay 64 more cents for it than you would have to pay for the 22 oz. bottle.

78.59 is the mean

step-by-step explanation:

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.