Answer: 
Step-by-step explanation:
Creating identical expressions involves changing quantities in a way that preserves the end values specified in the equation.
For instance, if Lei sold 4 carnations:

In the second equation listed, the expression (8 + 0.25c) was multiplied by 4, then by 0.25, for a total multiplicand of 1.
You can make a third equation through the same method. I'll multiply (8 + 0.25c) by 2, and then multiply that expression by 0.5 to keep the multiplicand unchanged:

If Lei sold 4 carnations:
0.5 * (16 + 2) = 9
This equation represents the same quantities as the other equations.
It’s less than a positive number
Answer:
1/2
Step-by-step explanation:
4/9 is .444
1/2 is .5
1/3 is .3333
4/9 is closer to being 1/2 than 1/3
Answer:
135
Step-by-step explanation:
Angles 1 and 3 are vertical angles, so they are congruent.
Since angle 1 measures 135 deg, angle 3 also measures 135 deg.
Angles 3 and 7 are corresponding angles of parallel lines cut by a transversal, so they are congruent.
Since angle 3 measures 135 deg, angle 7 also measures 135 deg.
Answer: m<7 = 135 deg
Answer:
The only solution is c=1
Step-by-step explanation:
c^2 - 2c + 1 = 0
What 2 numbers multiply to 1 and add to -2
-1 * -1 =1
-1 + -1 =-2
( c-1) (c-1)=0
Using the zero product property
c-1 =0 c-1 =0
c=1 c=1
The only solution is c=1