One none or many solutions 30+6p=7(p+6)-5

If u good at math hit me up on insta or sum @basic_jaiden or @ and

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.

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.