Solve using the quadratic formula. Select the correct solution.
-7x=2x^2+9

Pls! does anybody know a shortcut for answering these types of questions in the future?

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.

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.