Cuándo se realiza una operación matemática con dos números naturales y su resultado es un número natural se cumple la propiedad... ¿?​

Itook a better photo of the question so y’all can see it i hope it’s a fine photo

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.