No it’s less than because it’s negative
-2(-5)^2 + 7
-2 • 5^2 + 7
-2 • 25 + 7
-50 + 7
-43
The answer shouls be 4.
m is men and f is female, so
fffmmm,
mfffmm,
mmfffm,
mmmfff
X=60 and y=20
x and y can be many things that answers the question to 120
47 - 19 = 28
28/4 = 7
At most they can spend 7 hours
The solution is
T = (47-19)/4
T = 28/4
T = 7
I think that solution is what your teacher is asking for, i'm not certain but ik the answer should be 7 hours.