Wilma can mow a lawn in 60 minutes. Melissa can mow the same lawn in 30 minutes. How long does it take for both Wilma and Melissa to mow the lawn if they are working together?

What are the sotions to the quadratic equation 9x^2=4

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68