Which expressions are equivalent to 4(3j+(-4))-94(3j+(−4))−94, (, 3, j, plus, (, minus, 4, ), ), minus, 9 ? Choose all answers that apply: Choose all answers that apply: (Choice A) A -12j-13−12j−13minus, 12, j, minus, 13 (Choice B) B -4(-3j+4)-9−4(−3j+4)−9minus, 4, (, minus, 3, j, plus, 4, ), minus, 9 (Choice C) C None of the above

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Bob the builder is making 480kg of cement mix. this is made by cement, sand and gravel in the ratio 1: 3: 4

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.