D. Diving both sides by 4 isolates the variable.
C. the number goes up by one tenth. changing the 0 in the tenth place to a one.
Answer:
Step-by-step explanation:
using sine formula

So, if n Divided by 7 = 3 , then n must be 21, because if you do 3 x 7 it equals 21, so now we know n is 21, then that means its 3 x 21 divided by 7 which is 9. Hope i helped ^-^