The lines / and m have equations r 3i- 2j+ k+1(-i+2j + k) and r 4i + 4j +2k + u(ai+ bj- k) respectively, where a and b are constants. (i) Given that I and m intersect, show that 2a - b = 4. (ii) Given also that I and m are perpendicular, find the values of a and b. (iii) When a and b have these values, find the position vector of the point of intersection of I and m.

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5.PS-16 Question Help A shoe store uses a 60% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a wholesale cost of $55? The selling price would be $ (Round to the nearest cent as needed.) Enter your answer in the answer box and then click Check Answer. All narte chowing Review progress Question 9. of 9 pe here to search