Which letter has a line of symmetry F, H, J, L, R

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Acompany manufactures three types of cabinets. it makes 110 cabinets each week. in the first week, the sum of the number of type-1 cabinets and twice the number of type-2 cabinets produced was 10 more than the number of type-3 cabinets produced. the next week, the number of type-1 cabinets produced was three times more than in the first week, no type-2 cabinets were produced, and the number of type-3 cabinets produced was the same as in the previous week.