At the beginning of a population study, a city had 320,000 people. Each year since, the population has grown by 9.4%. Lett be the number of years since start of the study. Let y be the city's population.
Write an exponential function showing the relationship between y and t.

What is the maximum total area that 450cm of string can enclose if it is used to form perimeters of two adjoining rectangles as shown?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Scott’s bank account showed a balance of $750 on sunday. during the next five days, he made one deposit of $140 and numerous withdrawals of $180 each. let x represent the number of withdrawals that scott made. write an inequality that can be used to find the maximum number of withdrawals that scott could have made and maintain a balance of at least $100. do not use a dollar sign ($) in your response.