Bob needs one hour to rake the leaves. It takes George 1/2 an hour to the same job. How long will it take them to rake the leaves together
based on the same rates?

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

its line 2 i just added the rest or else it wouldn't let me answer

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.