Next month Lucinda’s brother has to mow the lawns for her. If her brother mows lawns according to the equation = 3, how many hours should he plan to work to mow 6 lawns? Show your work.

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Find two numbers if their sum is 91 and the ratio is 6: 7?

The bottom of ignacio's desktop is 74.5cm from the floor. ignacios sits in his adjustable chair, and the tops of his legs are 49.3cm from the floor. each clockwise rotation of the knob on the chair raises ignacio's legs by 4.8cm. write an inequality to determine the number of clockwise rotations, r, ignacio could make with the knob without his legs touching the desk.