Question

Which expression has a value that is equal to the given expression when n = 8?

a) 2n
b) 2(n + 5)
c) 10n - 2
d) n² - 5
e) 3n

Answer 1

The expression that has a value equal to the given expression when n = 8 is 2n.

Step-by-step explanation:

The expression that has a value equal to the given expression when n = 8 is 2n.

To understand this, let's substitute n = 8 into each expression and evaluate:

a) 2n = 2(8) = 16

b) 2(n + 5) = 2(8 + 5) = 2(13) = 26

c) 10n - 2 = 10(8) - 2 = 80 - 2 = 78

d) n² - 5 = 8² - 5 = 64 - 5 = 59

e) 3n = 3(8) = 24

So, the expression that has a value equal to the given expression when n = 8 is 2n.