If 10 litres of paint cost £45 find the cost of 3lites

30 in the diagram line e and made parallel to each other and line p and q are transversal. use properties of special angles formed by parallel lines and their transversals to find the missing angle measures. m< 3=65 m< 15=120 m< 7= m< 4= m< 6= m< 1= m< 16= m< 18= m< 21= m< 10= m< 11= m< 12=

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Does the point (1, sqrt 7) lie on circle shown.