Answer:
x=-5.5
Step-by-step explanation:
Answer:
1, .8, .5
Step-by-step explanation:
Anything larger than 0 is positive
Answer:
76
Step-by-step explanation:
decagon = 10 sides
3 heptagons = 3 × 7 = 21 sides
3 nonagons = 3 * 9 = 27 sides
3 hexagons = 3 * 6 = 18 sides
10 + 21 + 27 + 18 = 76 sides in total
hope this helps please like and mark as brainliest