Answer:
-1 1/64
Step-by-step explanation:
13/8 * - 5/8 = -65/64, or -1 1/64
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The answer is A
1 1/2 *2 *1 1/2 = 4.5 or 4 1/2
Answer:

Step-by-step explanation:
{90° = m∠1 + m∠2
{105° = 2m∠1 - m∠2
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All you have left to do is this:

So, your two angle measures are 
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First you add 8x on both sides and then you get -3y=8x+24 then you divide -3 on both side and you get y=-8/3x-8 so then the y intercept is 8 and the slope is -8/3. Hope this helped. Please click on the thanks button if this helped. If you have any questions or concerns please ask them down in the comments.