Art had $415.75 in his account at the beginning of the month. he wrote checks for $134.16, $78.90, and $15.67. how much must he transfer from his savings to cover a rent check for $250?

Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!

Is the power produced directly proportional to the wind speed, give reasons for your answer?

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%