I need help with this math problem, it's about polynomials and degrees​

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?

Franklin is purchasing a home for $82,107 and is financing 80% of it. the documentary stamp tax on the deed in his state is $0.70 per $100 or portion thereof. how much will he pay for the documentary stamp tax?

Ling is using fraction strips to add 2/3 and 7/12's the sum is one whole plus how many twelves?