Answer:
pretty sure is the first one
Step-by-step explanation:
-1/2x +3 =3x -4
Answer:
I have no idea sorry :c
Step-by-step explanation:
Answer:
Mary is 7
Step-by-step explanation:
If their ages combined equals 21 and john is twice Mary’s age then johns age takes up 2/3 of 21. that would b 14. 14 is 2 x 7. and Mary is 7. 14+7=21. Mary is 7 years old
12.83 but the three repeats .