Answer:
87
Step-by-step explanation:
f(x) = 2x+1
3. constant - D. a numerical value
2. coefficient - A. the constant preceding the variables in a product
4. expression -E. a mathematical phrase....
5. variable - B. a letter... representing an unkown
1. algebraic expression - C. a mathematical expression...
hope this helps
21 fewer stars than three times a number h
21 - (3 x h)
D.

Where (h, k) is the center of the circle and the radius is squared.