If a gallon of milk costs 3$ now and the price is increasing 10% per year how long before the milk costs 10$ a gallon

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

Find the value of x for which line a is parallel to line b