Rosy has two faulty alarm clocks. clock a rings every six hours, and clock b rings every nine hours. when will they both ring together for the first time?
choices
a. after 6 hours
b. after 9 hours
c. after 15 hours
d. after 18 hours
i need this done asap. first one to answer will definitely get a thx.
and you

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 ! ~

1. perpendicular

2. parallel

3. perpendicular