A factory sells backpacks for $40.00 each. The cost to make 1 backpack is $10.00. In addition to the cost of making backpacks, the factory has operating expenses of $12,000 per week. The factory's goal is to make a profit of at least $980 per week. Which inequality represents the number of backpacks, x, that need to be sold each week for the factory to meet this goal? EXPLAIN YOUR ANSWER PLZZZZZZZZ