Elena ran 20 miles this week, which was three times as far as clare ran this week. clare ran 5 more miles this week than she did last week. 

.mp4 files, because, video

the height of the surface increases from the center out to the sides of the road

it is c!

b) yes

step-by-step explanation:

let the statements be named as,

statement 1: if the power has been cut, then the refrigerator does not work.

statement 2: the refrigerator does not work.

conclusion: the power has been cut

now, 'law of detachment states that if we have the statements given as,

1. if p, then q.

2. p

then, we get the true statement or conclusion as q'.

thus, on comparing, we get that,

p: if the power has been cut.

q: the refrigerator does not work.

so, the argument is true by the law of detachment.