Answer:
A.) -5
Step-by-step explanation:
-3×-5 = 15 (two negatives equal a positive)
15-4 = 11 which is greater than 7
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Answer:

Step-by-step explanation:
Let do algebra and figure out the value of x:

<u>Note:</u> assuming that the problem is 
The function
f(x) is even
g(x) is neither even nor odd
h(x) is odd
Steps:
for an even function it holds that f(-x) = f(x):
f(-x) = (-1)^6 x^6 - (-1)^4 x^ 4 = x^6 - x^4 = f(x) => f is even
for an odd h(x) it holds that h(-x) = -h(x):

It is easy to show that g(x) does not match any of the two possibilities above.
Answer:
X=7/2 Y=1
Step-by-step explanation:
4X-Y=13
4X-13=Y
2X-3(4X-13)=4
2X-12X+39=4
-10X+39=4
-10X=4-39
-10X=-35
X=7/2(-35/10)
Y=4(7/2)-13
Y=14-13
Y=1