Write an expression and then solve Three less than 1/4 of the products of 8/3and nine

Simplify the expression. enter the correct answer.

Is there a direction u in which the rate of change of f(x,y)equals=x squared minus 3 xy plus 4 y squaredx2−3xy+4y2 at p(1,2) equals 14? give reasons for your answer. choose the correct answer below. a. no. the given rate of change is smaller than the minimum rate of change. b. no. the given rate of change is larger than the maximum rate of change. c. yes. the given rate of change is larger than the minimum rate of change and smaller than the maximum rate of change.

Sylvia rented a boat for $16.50 per hour. her total rental fee was $49.50. for how many hours did sylvia rent the boat