In exercise, use properties of exponents to simplyfy the expression.
(51/2)(31/2)

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?

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels

Two numbers have a sum of -19. one number is x. what expression represents the other number?