We can see that OW/IG = 5/15 = 1/3 and CW/PG = 7/21 = 1/3. So we have two ratios that result in the same value (1/3). We would need to know if CO/IP is also 1/3 as well, so we can use the SSS similarity theorem. However we don't have that information. So we can't use SSS.
Alternatively, if we knew that angle CWO = angle PGI, then we can use the SAS similarity theorem. But that bit of info isn't given to us, so we can't use SAS either.
AA can't be used because we don't know anything about any pairs of angles.
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In short, the answer is choice D. It cannot be determined. There isn't enough information.
A suitable equation will equate the quantity of detergent both before and after the water is added to the solution.
the amount of detergent in 11 gal of 18% solution is the same as the amount of detergent in the 12% solution (after g gallons of water are added)
.18*11 = .12*(11+g)
The vertex is located at (-1,-9)
Answer:
3
Step-by-step explanation:

X= # of individual bags
x= 15 lbs ÷ 3/4 lbs
15 is the same as 15 over 1
x= 15/1 ÷ 3/4
multiply by reciprocal of 3/4
x= 15/1 * 4/3
x= (15*4)/(1*3)
x= 60/3
x= 20
ANSWER: She will need D) 20 bags
Hope this helps! :)