Question 243630
Only write one problem at a time. I'll do first 5.


1. write in symbols the rule to find y, double x and add 1 


y=2x+1


2. Don't know what you want here.


3. 
a) 
C=S+NX
C=860+152*7
C=1924


b) 

C=S+NX
C-S=NX
(C-S)/X=N
N=(C-S)/X

      

4. 

X(X+Y)=-2(-2+1)=2


X(X+Y)=2 when X= -2 and Y= 1


5. 

C-AB
-3-1*2
-5

C-AB=-5 when  A= 1,B= 2 and C= -3