HELP PLEASE!!!!
At a particular restaurant, each mozzarella stick has 90 calories and each onion ring has 50 calories. A combination meal with mozzarella sticks and onion rings is shown to have 960 total calories and 3 times as many mozzarella sticks as there are onion rings. Determine the number of mozzarella sticks in the combination meal and the number of onion rings in the combination meal.