This is Kristy's recipe for breakfast cereal. 50 grams of oats, 30 grams of raisins, 40 grams of nuts, If she uses 40 grams of oat, how many grams of raisins does she needs?

Answer

20

Step-by-step explanation:

Because if she uses only 40 instead of 50 she just subtracting 10.

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.  

i think asking google will you get the answer to that question