Which system of equations has only one solution?
4x + 2y = 8
-4x-2y=3
–5x+y=B
5%-y--B
-3x+4y=2
3x - 4y=0
2x+4y - B
ax-Ay-a

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?