What is the solution to the linear equation d-10-2d+7=8+d-10-3d

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

Hi, can anyone show me how to do this problem? 100 points for this. in advance