Sophia Livingston is a welder. She earns $19.50 per hour. How many hours per week must she work in order to earn approximately $750 per week? 38.50 42.50 b. 39.25 d. 47.25 C.

step-by-step explanation:

the shape,the size and the distance

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

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)

a

step-by-step explanation: