2x-4+4x-1=8x-43
-2x=-38
x=19
so QS=2(2*19-4)=68
Answer:
D
Step-by-step explanation:
Since they have the same denominator (4) which is the number on the bottom of the fraction, you can just add the numerators (3 and 4), which are on the top of the fraction, together:
3/4 + 4/4 = 7/4
Answer: she could get any of them the smalls ones or the large ones because 4x4=16 and 4x6=24 so she could pick the small or the large ones.
Work shown above! Answer is A = (πD^2)/4. d = diameter
Hope this is what you were looking for!