Liam is a tyre fitter. It takes him 56 minutes to fit 4 tyres to a van.
How long will it take him to fit 12 tyres to three vans?

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

15/16 as a decimal rounded to the nearest hundredth

Solve 3x-18=2y and 5x-6y=6 by elimination show work