Answer:
81.39% increase.
Step-by-step explanation:
Given: There is change in number from 43 to 78.
First lets find the amount of change or difference in number.
Difference in number= 
∴ Difference in number show that there is an increase of 35 number.
Now, finding the percent change in the number.
Percent= 
⇒ Percent change in number= 
∴ 81.39% increase in the number.
Answer:
a. 
b. 
Step-by-step explanation:
change switch x and y and then solve for y.
a. 





same for b.
b. 





Answer:
Center: the middle of the circle. Radius: the fixed distance from the center to any point on the circle is called the radius.
Step-by-step explanation:
The center is a fixed point in the middle of the circle; usually given the general coordinates (h, k). The fixed distance from the center to any point on the circle is called the radius.
Answer:
is the question want to ans to be in the form of x