To change the knots per hour to miles per hour use the expression 1.15k where k is the speed in knots er hour a plane is flying at 300 knots per hour how fast i the plane flying in miles per hour

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

step-by-step explanation:

if u want da anser kill your teeser ifu hav wun