Answer:
a. Sage and Tom have the same number of talk minutes left on their cell phone plans.
b. y = x - 7
Explanation: 
Sage talked for 7 minutes with her dad. 
Tom talked for 4 minutes with a friend and 3 more minutes with his mom which means he spoke for :
= 4 + 3 
= 7 minutes 
They both spoke for 7 minutes and therefore have the same amount of time left. 
Algebraic expression:
Assuming the time Tom started with is denoted by x and the time he is left with is denoted by y. 
The expression is:
y = x - 7
 
        
             
        
        
        
Answer:
 it is decreased by $70,000
Step-by-step explanation:
Federal reserve sells $70,000 in treasury bonds to a bank at 9%
 
        
             
        
        
        
Answer:
cosine
Step-by-step explanation:
 
        
             
        
        
        
Answer:
(-3,5)
Step-by-step explanation:
Please brainleist me
 
        
             
        
        
        
Answer:
B. –7x +7y = –49
Step-by-step explanation:
Graph the line using the slope and y-intercept, or two points.
Slope:  
1
y-intercept:  
(
0
,
−
7
)
x
y
0
−
7
1
−
6