A. Left: 5, Center: 6, Right: 5 B. Left: 6, Center: 5, Right: 6
C. Left: 5, Center: 7, Right: 5
D. Left: 7, Center: 3, Right: 7

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

here is the

mark brainliest pl

the answer is simply just 6n add the two together as they have an n