Answer:
<u>Answer</u><u> </u><u>is</u><u> </u><u>-</u><u>6</u><u>t</u>
Step-by-step explanation:

Note that π is 180°
Answer:
<em>is your answer.</em>
Step-by-step explanation:

Answer:
d=-4
Step-by-step explanation:
20 = –d + 16
Subtract 16 from each side
20-16 = –d + 16-16
4 = -d
Multiply each side by -1
-1 *4 = -1 * -d
-4 =d