2x^3+2x^2+5x-7, That would be the answer.
To answer this question, we just need to subtract the low ( -22 ) from his much it rose ( 35 ).

So the highest temperature was 13.
Answer: 
Step-by-step explanation:
Let we consider sales of home in January as first term for sequence, then sales in February will be 2nd term and so on.
According to the given information, we have
First term : 
Second term :
Third term : 
We can see that, Common difference = 7
Explicit rule for Arithmetic sequence :

Put
and d=7

The required explicit rule that can be used to find the number of homes sold in the nth month of the year : 
Answer:
z=6
Step-by-step explanation:
25-19=6
19+6=25
Answer:
x=1
Step-by-step explanation:
To solve, we need to get x by itself. To do this, preform the opposite of what is being done to the equation, and everything that is done to one side, must be done to the other.
5(2x-8)+15= -15
First, subtract 15 from both sides, since 15 is being added
5(2x-8)+15-15=-15-15
5(2x-8)=-30
Next, divide both sides by 5 since 5 is being multiplied
5(2x-8)/5= -30/5
2x-8= -6
Add 8 to both sides, since 8 is being subtracted
2x-8+8= -6+8
2x= 2
Divide both sides by 2, since 2 is being multiplied
2x/2= 2/2
x=1