Ineed the answer to all 4 questions

The answer to your question is:

Step-by-step explanation:

a) There is no figure 0.

b) From one figure to the other there are 2 more cubes

c) Number of cubes = 3 + 2(n- 1)

where n is the number of figure

d)

Number of cubes in figure 100 = 3 + 2(100 - 1)

                                                   = 3 + 2(99)

                                                   = 3 + 198

                                                  = 201

x = 25

step-by-step explanation:

a^2+b^2=c^2

7^2+24^2=c^2

49+576=625

sqrt625=25

x=25

your answer would be 10x - 1