Please please help me on this question Use addition and/or subtraction to simply this polynomial

(3x- 5- 7x^2) - (-2+6x^2-5x)

N LINKSS PLZZ

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?

On this question. a hypothermia occurs when a person's body temperature drops below 95 degrees fahrenheit. write and solve an inequality that describes how much lower the body temperature of a person with hypothermia will be than the body temperature of a person with a normal temperature of 98.6 degrees fahrenheit

Which answer choice is it? is it the first ,second,third or fourth giving 40 points for whoever answers correctly you