D) a.b > 0 is the wrong answer
One solution
The two (or more) equations would only intersect once
No solution
Lines never intersect
The lines are parallel
Infinite solutions
The lines are the exact same
That’s all the characteristics I know
The area of a right triangle with side lengths 7 and 7 is 
Use a calculator
Just look up how to find unit rates and it should be easy
Answer:
545.662
Step-by-step explanation:
88.01
<u> x 6.2 </u>
17602
<u> 52806 </u>
545.662