It is 6 17/21 for the answer
17.
B
Apply distributive property 2(5 - 3x) multiply 2 * 5, and 2 * -3x, you will end up with 10 - 6x.
18.
C
5*2x = 10x
5*4y = 20
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1500 is minus 1/10 after it is at 1700 thousad
Vertical angles are always equal. The vertical angles are the ones opposite each other. Therefore x would equal 40.