What’s the answer and how do you do it?

Add all three fractions together to get the total growth in 3 weeks.

2 1/2+2 3/4+3 1/4=x (x being how much the sunflower grew in the 3 weeks)

Convert all fractions so they are mixed numbers.

5/2+11/4+13/4=x

11/4+13/4=24/4, or 6

Convert 6 to the fraction 12/2.

5/2+12/2=17/2, or 8 1/2

Hope this helps :)

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.  

4x and 6y

im not sure though