Determine which of the following statements is a tautology or a contradiction.

(i) ~ q ~ p

(ii) p (p v q)

(iii) (p ù q) (p v q)

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?