Answer:
DCB ~ RST
JKL ~ JTU
Step-by-step explanation:
2 * 10^2
Divide the first numbers, which are 6 and 3, to get 2. Then, subtract the powers of the exponents, which are 5 and 3, to get 2.
190. Count it out on your fingers, starting with -10,-15, and -20. Then count out both hands.
Answer:

multiply all terms in the top equation by 2
multiply all terms in the second equation by -7. it would then add the two equations together to cancel out the variable x
You will then have two equations in terms of y
solve for y and either equation then substitute that value for y into the other equation then solve for x