If the value of one variable changes, must the value of the other variable change for the equation to remain true?

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?

Aright triangle includes one angle that measures 30º. what is the measure of the third angle? a. 30º b. 90º c. 60º d. 130º

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.