Answer:
1.28f 
if a term doesn't have a coefficient
it is considered that the coefficient
is 1
 
        
             
        
        
        
Answer: 54
Step-by-step explanation:
3 times the square of -3 plus -5 times -3 plus 12
3 times 9 + 15 + 12
27+15+12=
54
 
        
             
        
        
        
Answer:
Step-by-step explanation:
We know she gets 4 more quarters so: q+4
She gives away 3 dime so: d-3
And the nickels stay the same: n
In total the expression would be:  <u>q+4+d-3+n</u>
<em>Hope this helps :D</em>
 
        
             
        
        
        
The books are $5, and the magazines are $10. I’m not sure which way you want it explained but since magazines are twice the price of books, you can solve the equation 3b + 2b = 25. This gives you b=5 which you just multiply by 2 giving you the price of a magazine.