Kathleen deposits $20 into her account that earns 2.5% interest that is compounded twice a year. how much money will kathleen have in her account in 30 years?

answer: a.12cm

step-by-step explanation:

the best estimate is 3 because   8 can only go into 24 3 times

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.