Anybody wanna me answer these questions ?

for number 4, you just have to add 6 to 5 times more of a number and that equals at least 21. so it would be,

5x + 6 ≥ 21

for number 6 she already has 3 lbs of things in her bag, so you subtact 3 from 18 and get 15 she can carry 15 more pounds, since each book weighs 3 lbs you divide 15 by 3 and get that she can carry 5 more books in her bag.

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.  

cut 138 centimeters off

step-by-step explanation:

250-112 = 138