The lengths of Brian's isopods were 16 mm, 14 mm, 6 mm, 3mm, 18 mm, 5 mm, and 10 mm. What was their total
ength laid end to end?
What was the average length?

Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)

Can someone me do math because i am having a breakdown rn because i don’t get it

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible