Which expressions are equivalent to 3x+3(x+y)3x+3(x+y)3, x, plus, 3, left parenthesis, x, plus, y, right parenthesis ? choose all answers that apply: choose all answers that apply: (choice a) a 6x+3y6x+3y6, x, plus, 3, y (choice b) b 3(x+x+y)3(x+x+y)3, left parenthesis, x, plus, x, plus, y, right parenthesis (choice c) c 3xy3xy

Choise A and Choise B.

Step-by-step explanation:

Given the following expression:

You can simplify it in order to find equivalent expressions.

Appying the Distributive Property, you get:

So:

1. If you add the like terms, you get this equivalent expression:

2. But if you factor out 3, you get the following equivalent expression:

Therefore, the expression shown in Choice A and Choise B are equivalents to the expression

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510

f is the midpoint of