Balance C4H6O3 + H2O −−→ C2H4O2

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?