7th grade math <3 pls help heh

a. 12a + 3b

b. 5b + 3a

Step-by-step explanation:

Which terms have the same thing applied to them? This is what I ask myself while figuring these out.

a. 5 and 7 both are multiplied by a, so you can combine the expressions to make 12a.

b. 10b - 5b = (10 - 5)b

Both 10 and 5 are multiplied by b, so you can just subtract the integers to get 5b.

I hope this helped!

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3

hi there, i would be interested to you with your test, may you add the questions and answer options.

- : )