Ben made a model (shown below) of the square pyramid he plans to build when he grows up.
Find the surface area of the model.

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3

8121 because

130,000 divided by 16 is 8121

correct answer:

i^31 = -i