Answer:
47 - 2n
Step-by-step explanation:
An algebraic expression is an idea of representing numbers using letters or alphabet.
From the question above,
The variable = n
twice the number = 2× n = 2n
Translating:
7 hours
24 + 3x = 45
3x = 21
x=7
(new -original)/original * 100
(36-20)/20 * 100
16/20 * 100
.8*100
80
80% increase
depends on approximately how much there is in the ben