Help me please please

Let r = 3. what is the value of r + 58?

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

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?