Answer:
68
Step-by-step explanation:
8 + 3 (71 – 51)
71-51= 20
20*3=60
60+8=68
Answer:
4.28 per recipe
Step-by-step explanation:
21.4 divided by 5 = 4.28 per recipe
<h3>
Answer: D. regular hexagon</h3>
A hexagon is composed of 6 congruent equilateral triangles. Each equilateral triangle has interior angle of 60 degrees. Adding 6 such angles together gets you to 360 degrees. So we've done one full rotation and covered every bit of the plane surrounding a given point. Extend this out and you'll be able to cover the plane. A similar situation happens with rectangles as well (think of a grid, or think of tiles on the wall or floor)
In contrast, a regular pentagon has interior angle 108 degrees. This is not a factor of 360, so there is no way to place regular pentagons to have them line up and not be a gap or overlap. This is why regular pentagons do not tessellate the plane. The same can be aside about decagons and octagons as well.
Answer:
18
Step-by-step explanation:
thanks and follow mark as brainlist
x 1 x 1 = 
