Is -3r + 137 equivalent to 6r - r + 8 (15 - r) + 23 - 6

He concluded that a heavier object dropped from the same height as a lighter object will land

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?

Rationalize the denominator- 12x/√x-10