Answer:
It's d) 4r+13b+16
Step-by-step explanation:
Hope this helps!
600 elves
25% = 1/4
1/4 of the total = 150.
1/4 x 4 = 1 (total)
150 x 4 = 600
there are 600 elves
Answer:
2x+20+3x+10 = 180 (int. angles, parallel)
5x+30 = 180
5x=150
x=30
Answer:
Option A.
Step-by-step explanation:
Area of a square is
.... (1)
where, x is side length.
The length of each side of his square plot is decreasing at the constant rate of 2 feet/year.

It is given that bob currently owns 250,000 square feet of land.
Fist find the length of each side.


Taking square root on both sides.

Differentiate with respect to t.

Substitute x=500 and
in the above equation.


Farmer bob is losing 2,000 square feet of land per year.
Therefore, the correct option is A.
Answer:
c
Step-by-step explanation: