She can simplify the 12 and the 3.
25 meters is the same as 250 decimeters tall.. hope this helped
Use elimination method - I am eliminaing the y-variable.
1(5x + 8y = 16) → 5x + 8y = 16
4(6x - 2y = 54) → 24x - 8y = 216
Add equations: 29x = 232
Divide by 29: x = 8
Answer: x = 8
Okay, so you would just multiply by 2, then round. You get $150.24.
