There are 52 weeks in a year and if she gets paid every two weeks then divide 52 by 2 to get 26 so she would get paid 26 times a year so divide her annual salary by 26 to get $1,346.15 every other week. So her biweekly salary is $1,346.15.
Isolate for each variable.
1. z= 6 - 10
z= -4
2. y= 48/8
y=6
3. q= 1+12
q= 13
4. 18 x 2= a
36= a
5. r= 7 x 3
r= 21
I think you can try the rest :)
84 I'm sure it's that I did it before