Answer:
a = -10
Step-by-step explanation:
-0.4a + 3 = 7
subtract 3 from each side
-0.4a + 3-3 = 7-3
-.4a = 4
Divide each side by -.4
-.4a/ -.4 = 4/-.4
a = - 10
155° - 110° = 45°
14.037
0.037+5+9
Your answer is 16 feet.
P=2(l+w)=2·(2+6)=16
