Does the commutative property apply to subtraction

The time spent dancing (minutes) and the amount of calories burned can be modeled by the equation c= 5.5t which table of values matches the equation and includes only viable solutions

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3