Answer:
a
Step-by-step explanation:
The circumference (C) of a circle is calculated as
C = 2πr ( r is the radius ) , then
C = 2π × 20 = 40π
Answer:3(2a+5)
6a+15 divide both sides by 6
a=2.5
Step-by-step explanation:
56% of 75 = 42
80% of 60 = 48
The question asks for the difference, so there are 6 additional people who like salsa music