Can any one with these 3 questions? 10+4(-2x-1)-6x second one is (6xy-+8xy) third one 3(4xy-+5xy)

The polynomial function of least degree with a leading coefficient of 1 is: f(x) = x3 + ax2 + bx + c

Seattle, washington is known for being rainy. one day last month, 8 inches of rain fell in 1 1/2 hours. what us the rate of the rainfall expressed in ft per plzzz write a proportion i will give you 100 points

#7. m is the midpoint of pq, the diameter of the circle o is 13in. and rm = 4in. find pm find pq