To find the total cost of Roast Beef, multiply 114 lbs by $2 equaling $228. Next to find the total cost of the turkey, multiply 212 lbs by $1.5 equaling $318. The last step is to multiply the two sums giving you a total of $546
Louse bought 114 pounds of roast beef at $2.00 per pound, this means that each one of the 114 pounds cost $2, then the total cost of the roast beef is $2*114 = $228.
For the turkey she bought 212 pounds at a price of $1.50 per pound, with the same reasoning as before, we need to see $1.50*212 = $318
then she spend $228 in roast beef and $318 in turkey, then the total cost is the addition of this two: $228 + $318 = $546.