Which of the following expressions cannot be evaluated? A (-6)^-2
B 0^-2
C 6^-2
D 6^-1/2
E 0^-1/2
F (-6)^-1/2

(the "^" represents an exponent)
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then say something, tell them they won’t respect you if you don’t even have respect for your self sweetheart you need to lay it on them, all of it : )

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -

the answer i believe is 27 units.

step-by-step explanation: