Mark is building a pyramid out of blocks. the top of his pyramid has 1 block, the second layer has 4 blocks, the third layer has 9 blocks, the fourth layer has 16 blocks, and the fifth layer has 25 blocks. if mark decided to add a sixth layer to his pyramid, how many blocks would that layer have?

36

Step-by-step explanation:

The difference between the first and second layer is 3, then 5, then 7, then 9, so you can deduce the next one will be 11.

25+11=36

d) the triangle is a right triangle 60 squared +144 squared= 156 squared

step-by-step explanation:

156 squared is the hypothenuse

so 156= c

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