Answer:
x=56
Step-by-step explanation:
I may be wrong but
That’s a pentagon so
5-2=3
180x3=540 ( total area of a pentagon)
89+99+72= 260
540-260=280
3+2=5
280/5=56
x=56
Answer:
$27.70
Step-by-step explanation:
v=video games d=DVDs
7v + 4d =
7(2.3) + 4(2.9) = 27.7
Answer:
y=5x
Step-by-step explanation:
The table is given as:
x | y
2 | 10
4 | 20
6 | 30
8 | 40
A proportional relation satisfy the relation: 
We can substitute any x value with the corresponding y-value and solve for k.
When x=2,y=10
This implies that:

Divide both sides by 2 to get:

Hence the equation is 