Erica knits has 18 squares on monday .she knits 7 more squares each day from tuesday through thursday .how many squares did erica knits in all by the end of the day on thursda

39 squares in all

Step-by-step explanation:

step 1 right it out

18-monday

7-tuesday

7-wednesday

7-thursday

Step 2 add them all up

then you get 39

hopes it help make me brainlist

77

step-by-step explanation:

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.