Answer:
79
Step-by-step explanation:
The area of a circle is pi*radius^2; the radius of this circle is 10 (20/2=10). Our area is then 100pi or ~314 square feet. A 2x2 square takes up 4 feet. 314/4 is equal to 78.5, or when rounded, 79
1
It could possible be either 21 or 23
Answer: -24
Explanation:
f(-9) = 3(-9) + 3
f(-9) = -27 + 3
f(9) = -24
The answer is 20 songs.
i) there are 19 pop songs
ii) there are 29 R&B songs
iii) the number of songs that have to be listened to in order to guarantee you hear one pop song and one R&B song
= 19 + 1 = 20 songs.
