Answer:
7. <K = <R
8. PR = JK
9. <A = <X
10. TX = AB
For question 7, find the angle that looks the most similar to the angle in the question.
For question 8, since the sides (not the hyp.) are equal, PR will be equal to any of those two.
For question 9, the triangles are positioned differently, but it is the angle with two angle lines on it.
Lastly, for question 10, TX will be the same length as the shortest side in the corresponding triangle.
The answer is angle JKL is 54 degrees
Answer: 12
Step-by-step explanation:
18÷3=6
6+6=12
18+12=30
30-18=12
If Chisaka does not space walks, the days she spend spacewalking are equal to zero. Since <span>S represents the number of days Chisaka spacewalks, we just need to replace </span>

in our inequality to find how long her food will last if she does not spacewalks:



From this calculation we can infer that the coefficient of N, 1.3, is the amount of food she needs per day if she doesn't spacewalks. Similarly the coefficient of S, 2.2, is the amount of food she need per day if she spacewalks.
We can conclude that Chisaka will need 1.3 kg of food if she doesn't spacewalks, and 2.2 kg of food if she spacewalks.