Larry used a pattern of colors to make a cube train he used a red cube a blue cube a red cube and another red cube before he started thr pattern again he used 15 cubes. how many red cubes did larry use

d) 48

step-by-step explanation:

16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,272,288,304,320,336

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol