40+50=90 all the sides are equally split so y = 90
Because percentage is the numerator divided by the denominator of a fraction times one-hundred, we can set up this equation:

Now, we cross multiply.

Next, we divide both sides by 0.55 to get x by itself.
x = 60
So, 33 is 55% of 60.
9^2/9^7
when dividing powers, we subtract the exponents
9^(2-7)
9^ (-5)
a negative exponent flips from the numerator to the denominator
1/ 9^5
Choice D
Answer:
37.5
Step-by-step explanation:
if it decreases by 1/2 every 8 hours;
( 3×8= 24)
the first 8 hours 1/2×300 =150 gram
the second 8 hours(16 hours) = 1/2×150=75 gram
the third 8 hours(24 hours) = 1/2×75= 37.5gram
The volume is 12x20x10 then divide by 2
200x12=2400
2400/2= 1200