I = V/R
make R the Subject formula​

Ineed asap.i cant understand this question i need someone to me right away

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?