Answer:
15
Step-by-step explanation:
1- 6-x=9 Place the terms on the correct side; always place terms with x on the left hand side and the others on the right hand side. (when placing on the other side convert from + to - or reversed) (the 6- converted to 6+)
2- x= 6+9= 15 Now work out the sum.
3- x= 15
Answer: Option D
D.
; 
Step-by-step explanation:
We know that the cost of preschool is $ 45 per day plus a monthly fee of $ 70.
We also know that a total of $ 880 was paid last month
To write an equation that represents this situation, let us call "d" the number of days that Barry attends school
So the cost was:

Now we solve the equation for the variable d



Therefore answer is the option D
Answer:It will be $ 8,469
Step-by-step explanation:
Answer:
75*25%+(38+40)*50%+85*25%=59.5
Step-by-step explanation:
17=70h
Divide each side by 70
It would be 14 mins and 33 seconds