Walmart sells colored pencils for $0.75 a box, spiral notebooks for $3 each, and pencil boxes for $1.20 each.

a. If Jack and his two sisters all buy one of each item, what will be the total cost?

b. Their dad game them a total of $30.00. How much would they have left after they purchase these school supplies?

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.