I honestly don’t know. But the square in the bottom of the triangles indicate that it is a right triangle equaling 90 degrees. You can try using that along with other knowledge of right triangles you have. Could you possibly use Pythagorean theorem also?
Answer:
a = -b + 10x + 9/ x
Step-by-step explanation:
5(2x+3)−6=ax+b
ax+b=10x+9
ax
+b+−b=10x+9+−b
ax=−b+10x+9
ax/x = -b+10x + 9 /x
hope this helpss!!
Answer: 2,000
Step-by-step explanation:
You can write the equation 
Then combine like terms 
Divide by 5 on both sides 
Find 2x 
$80 times 0.25 equals 20
80 minus 20 equals 60 bucks