Answer:
<h2> The second: 8m + 7n - 3 </h2>
Step-by-step explanation:
Q = 7m + 3n,
R = 11 - 2m,
S = n + 5,
T = -m - 3n + 8.
Q + S - T = 7m + 3n + (n + 5) - (-m - 3n + 8)
Q + S - T = <u>7m</u> + 3n + n + 5 <u>+ m</u> + 3n - 8
Q + S - T = 8m + 7n - 3
S + (3s)+(s+4) =0
I’d assume this is the answer based on information given
40 square units is teh correct answer
bro use a photo math...................
4 units.
Base 3 = 10 units
Base 1 + Base 2 + Base 3 = 14 units
14 - 10 = 4.
