Simplify: -7 - 8

Change 1 6/7 to a decimal round to the nearest tenth.

Will give brainliest! aubrey was offered a job that paid a salary of $45,000 in its first year. the salary was set to increase by 2% per year every year. if aubrey worked at the job for 20 years, what was the total amount of money earned over the 20 years, to the nearest whole number?

How do you solving the solution of each system using elimination?

Can someone me with these two circle theorem questions asap?