Answer:
6 greeting cards for 23.40
The 2 angles are vertical angles, which mean they are equal.
Set the two equations to equal and solve for x:
4x + 7 = 5(x-4)
Use distributive property on the right side:
4x + 7 = 5x -20
Add 20 to each side:
4x +27 = 5x
Subtract 4x from each side:
27 = x
X = 27
Answer:
.8
Step-by-step explanation:
4 and below rounds down
5 and up rounds up
.214=.2
.61=.6
.2+.6=.8