Write an equation that is parallel to y= 1/2x + 3 and passes through (0, 0).

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup

Acontainer holds 0.7 liters of oil and vinegar. 3/4 of the mixture is vinegar. how many liters of oil are in the container? express your answer as both a fraction and a decimal.

Apudding recipe requires 2/3 of a cup of milk for every 1 3/4 cups of sugar. what is the unit rate of sugar to milk in the pudding recipe?