Root are also known as what x is equal to. So, to find x you would need to set (x-4)=0 and (x+7)=0
X=4. X=-7
Answer:
$125.25
Step-by-step explanation:
8.75*h+11.25*e
h is hours regular pay and e is extra pay for overtime. Since its an extra $2.50 for overtime, add that to the regular pay. Put in the hours:

Simplify by multiplying 8.75 by 8

Simplify by multiplying 11.25 by 5

Add

Since it says how much did each earn, as in individually, leave it as it is (unless regular pay was $2.18 an hour, which would be a rip-off). I'm pretty sure including the number of employees was meant to throw you off.
K is 23.
As for the equation, it is
29=k+6
To solve, subtract 6 from both sides.
Answer:
Any two points on the circumference of the circle are the same distance from the center of the circle.
Step-by-step explanation:
Any two points on the circumference of the circle are the same distance from the center of the circle.
1/x=6/21
What you need to do is set it up as a proportion. 1 cup to 6 cups cake mix, x cups to 21 cups cake mix.
21/6 is 3.5
So 3.5 cups of water to 21 cups of cake mix (:
Hope this makes sense!