Help? I am awful at math.

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a