Algebra
posted by anonymous .
1) what is the equation for the line that passes through the point (3,5) and has a slope of 3 ?
2)the formula for the perimeter of a rectangle is P = 2(l+w). If the width of a rectangle is half its length. how many times its length is its perimeter?
3)what is the GCF of 60x^3 + 120x^2 +36x ?
4)write 3,010,000 in scientific notation
i'm having trouble with these can someone assist with this..?

(1) yY=m(xX) y5=3(x+3) y5=3x9; y=3x9+5; y=3x4 (2) since w=L/2 : p=2(l+l/2)