Answer:
2x+4x+5x=143 ... 11x=143 ... x=13 ... so 26:52:65 ... largest-smallest=65-26=39
Step-by-step explanation:
This is the equation.
-61(54-X)=-28+X
3 & the exponent 8 so...it would 3×3×3×3×3×3×3×3 which is...24 then tht dot means times so it's 24 × & the 3 & exponent 2 is 3×3 which is 9 SOOOO...its 24×9

Subtract 379 from both sides.
that gives us: 
divide both sides by -24 which equals: x = 13.
13 weeks