Can someone answer 5,6,7? can you also tell me how to solve them so i can do better in the future?

Marie drew the triangle shown. she wants to draw a second triangle that is different from this one. use the drop-down menus below to complete the statements about the second triangle.

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30