Implify, using the distributive property and then combining like terms.

5(3a+b)−2(3a+b)

9a+7b

Step-by-step explanation:

1. 15a+5b-6a+2b

2. 9a+7b

To simply using the distributive property you have to multiply the number outside the parentheses ( ) with the numbers inside the parentheses (like in step 1).

To combine like terms you have to add the numbers with the same variable together (like in step 2).

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day