Answer:
580.75
Step-by-step explanation: 11.50 * 40 =460
11.50 * 1.5 =`17.25*7= 120.75
120.75+460=580.75
Given that the heptagon has a interior angles sum of 900, the 3 angles is 900 - 478 = 422 degree.
Answer:
-4 (-2/8)
Step-by-step explanation:
1-5=(-4)
3-5=(-2)
hope this helps :3