Robert has built a mechanical model solar system with three balls representing planets at the ends of rods attached to the center representing the sun. The planets are aligned when he
turns on the motor. The innermost planet makes a revolution in 18 seconds, the middle
planet makes a revolution in 30 seconds, and the outermost planet makes a revolution in 42
seconds. After how many seconds will the planets be aligned again?

A. 1260 seconds
B. 630 seconds
C. 315 seconds
D. 945 seconds

answer: the answer is 127 degrees

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

the answer is thin because within context, the stanza concludes the and frail tone the people have toward each other, and the fact that it would be thin, makes the most sense compared to "pliable" or "not hard or firm to the touch". hope this , good luck.

step-by-step explanation:

can i have brainliest

24

step-by-step explanation:

the graph shows 30% of students walk. 80 students were questioned, so the number that said they walk is

30% × 80 = 0.30 × 80 = 24