Not really
30x7=210
5x7=35
Answer: The like terms are 12, 5, -4, 1...
I know this because none of them have a variable, and because i just learned this a few months ago, (and got an A...)
The 15 with the variable do not have like terms because it has a variable and none of the other number do...
Sorry if this doesn't make sense.. Hope this helps... Stay safe and have a great day/night!!! :D
Option a is not a function because for x = 0, y = 3 and 4.
option b is a function.
option c is not a function because for x = 2, y = 1 and 8.
option d is not a function because for x = 1, y = -3 and 4
Step-by-step explanation:

or equivalently

We often write variable side-byside without the multiplication sign in algebra. It also applies to terms with indices. For instance,

We may, often also add a dot at the middle of both terms as another version of multiplication sign for better readability if the terms are more complicated, for instance

and

Answer:3 over 1
Step-by-step explanation: