Can you solely rely on induction to prove that your conclusion is correct

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2