Your given expression has no "b", so you can rule out selections b, c, e.
The expression is not equal to 1, so you can rule out selection a.
That leaves selection d, which is the correct choice:
... d. 1/x^a
_____
The rule for exponents is that an exponent in the numerator is the same as its opposite in the denominator, and vice versa.
The exponent of <em>-a</em> in the numerator is the same as an exponent of <em>a</em> in the denominator.
Answer:
7^14 / 7^2 = 7^(14 - 2) = 7^12
To start with, we know there’s a definite amount of parking spaces in all(2,250) and we also know each level(6 in all) had 15 rows of parking spaces.
Equation
A = Parking spots per row
A = 2,250 Divided by(6 levels times 15 rows)
A= 2,250 Divided by 90
A = 25
The correct answer is 25 parking spots per row
To check this answer we can do
25 spots per row, Times 15 rows per level, Times the total amount of levels (6)
= the total amount of parking spots
25*15*6= 2,250
True
This confirms this answer as correct. Hope this helps.
10 people because all the sisters have the same brother so 7+1+2.
