What is the difference between -2^2 and (-2)^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?

10% of 1,900,000. show me how you got the answer

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.