Find the area of a triangle whose base is 2rad3in. and height is 3rad3

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

The ratio of the perimeters of two similar triangles is 4: 3. what are the areas of these triangles if the sum of their areas is 130cm2?

If mary had 320 toy cars and she gave her friend 50 cars and then she gave her brother 72 more cars how much toy cars would mary have left ● explain with proper details