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
The first thing you should know for this case is that the perimeter of a rectangle is defined as:
P = 2L + 2W
Where
L = length
W = Wide
We then have to clear the length:
L = (P-2W) / 2
Substituting the values
L = ((6x-6) -2x) / 2
Rewriting:
L = ((3x-3) -x)
L = 2x-3
Answer:
the length is
2x-3
7x^4 + x^3 – 3x^2 + 5x – 2
Answer:
32ft^2, 12ft^2, 16sqrt(13) ft^2
Step-by-step explanation:
8 x 4 = 32
1/2(4 x 6) = 12
sqrt(4^2 + 6^2) x 8
sqrt(52) x 8
2sqrt(13) x 8
16sqrt(13)
Answer:
0.32
Step-by-step explanation:
Convert to a fraction, then convert to a decimal by dividing the numerator by the denominator.