Find how many pages maria type in 1 minute if she types at the rate of 1/4 of a page in 2/3 of a minute?

Find the unit rate:  pages per minute.  

To do this, divide 1/4 page by 2/3 minute:

1         3       3 pages

* = = 3/7 page per minute

4       2         7 min

Note that I have inverted 2/3, obtaining 3/2, and then multiplied 1/4 by that, instead of dividing.

Maria can type 3/7 page per minute.

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.