Khan academy Please help

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

Select the number of ways in which a line and a circle can intersect