Sam and Jane must learn to spell certain words as part of their homework. The graph shows the number of words each one learns with respect to time. In how many minutes will they have learned to spell an equal number of words? A. 5 B. 10 C. 20 D. 60

hi there!

first we need to find out how much they are adding to each number to make the next number.

ex: 4 + 4 = 8, 8 + 8 = 16, and so on.

so continuing with 32,

32 + 32 = 64

64 + 64 = 128

128 + 128 = 256

256 + 256 = 512

4, 8, 16, 32, 64, 128, 256, 512

the 8th term of the sequence will be 512

hope this ! ~