Answer:
1. ⅞
3. 108
Step-by-step explanation:
1. (h,h,h) (h,t,t) (t,t,t)
(h,h,t) (t,h,t)
(h,t,h) (t,t,h)
(t,h,h)
total number of tails occured: 7
total cases: 8
3. Surface area is the sum of the areas of all faces (or surfaces) on a 3D shape. A cuboid has 6 rectangular faces. To find the surface area of a cuboid, add the areas of all 6 faces. We can also label the length (l), width (w), and height (h) of the prism and use the formula, SA=2lw+2lh+2hw, to find the surface area
