6. Write a simplified expression for the perimeter of the triangle below. *

12x+4

Step-by-step explanation:

For the perimeter, we have to add up all sides of the triangle.

(3x-4) + (4x+5) + (5x+3)

3x-4+4x+5+5x+3

(3x+4x+5x) + (-4+5+3)

12x+4

hello,

i think the correct answer is b) the fifth year.

hope this : )

**(vanessa)**

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles