Find an equation for the nth term of the arithmetic sequence.
a15 = -53, a16 = -5

What expression is equivalent to 1/2(2+3x-6)

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.