I believe they are similar.
Answer:
C. Rectangle that isn't a square
The ratio between the perimeters of two similar polygons is the same as the ratio between the corresponding sides.
12:15=30:x
12x=15*30
12x=450
x=450/12=37.5
37.5 is the answer.
4/5 is larger than 3/5, if the amount is getting smaller it is a decrease.
Because it is a decrease, you must subtract the orginal number from the new number and divide by the orginal. 4/5-3/5=1/5 1/5÷4/5= 1/4
1/4=.25
The percent of change is 25%
Answer:
-9 and 7
Step-by-step explanation:
