(6+18)^2 = m^2 + m^2
=> 2m^2 = (24)^2
=> m = 24/sqrt(2)
2x^2 + 25x + 50 not sure about the steps
It is a trick question. multiply 5.5 times 0.75=4.125
Yu add the products of the two numbers by 7
I'm pretty sure you add all the sides up together. So I think the answer to this would be 61 but I'm not 100% sure