2x+8x=30. x= #of pens
10x=30. combine like terms
x=3. divide by 10 to isolate (get by itself) x
2(3)=6. the # of white pens are represented by 2x
6 white pens
hope this helped!
Answer:

Step-by-step explanation:
Since two sides of the triangle are equal in length, we can conclude that
is an isosceles triangle. With this information, we can draw an isosceles triangle to find
. Since the base angles of an isosceles triangle are equal, we can solve for
:
(Angle sum of triangle is
)
(Base angles of isosceles triangles are equal, there is an image attached to show that
is one of the base angles)


Hope this helps :)
Decrease = (original number - new number) / original number .....x 100
decrease = (49 - 22) / 49.....* 100 =
(27 / 49) * 100 =
2700 / 49 = 55% decrease
It's 4/3 because of the distance formula
Answer: 1st is 180$ sorry if I’m wrong
Step-by-step explanation: