The have ordered 36 blue T-shirts. ___________________
How I got it --- So, we take away 16 from 58. You get 42. ________________________________________
So, from then, you know 36 is 6 times as many as 6, right? ( Because 6 x 6 = 36) ___________________________________________________________
So, then, you have ordered 36 blue shirts and 6 white shirts, because 36 + 6 =42. ______________________________________________________ Glad I could help, and good luck! _________________________ _________________________ _________________________
They are both right because the first expression is the perimeter but expanded in terms of length.The second expression is shortened to be a factor expression but they both represent the length. The benefit of the first one is you can see how it’s expanded and plug the numbers in and the second one is more easy to plug in the numbers with ease.