Answer:
the first answer ( I think these are 3 different questions) is y = -4x + 7
the second answer is y = -3x + 5
the third answer is y = 6x - 5, because the lines are parallel, they have the same slope and the y int is -5 from the point given.
Answer:
-5x^4y^3
Step-by-step explanation:
so you divide -25 by 5 and the rule is if it is division for exponents then you subtract the exponent so 6-2=4, 7-4=3, 3-3=0. z^0 is 1 so we don't have to write it out.
Answer:

Step-by-step explanation:
To simplify the expression
first we need to raise every member of the denominator to the given exponent, number 4
Remember that
where 'a' and 'b are natural numbers (any numbers you want

Where we can make some operations, remember that 

We have assumed that nor x, nor y equals 0 in any moment, since if that would happen, we ca not simplify anything bacause error math 0/0.
For this case the first thing you should know is the following unit conversion.
1 BTU = 0.25 Kilocalories
We then have the following numerical value:

Applying the conversion of units we have:

Canceling units we have:
Answer:
This is 20000 kilocalories per hour