The difference between a number and seven is less than or equal to -3.
find the possible numbers.

a. n ≤ -10

b. n ≥ -10

c. n ≤ 4

d. n ≥ 4

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

the answer is 8/21

hope this