Answer:
cost of one notebook: 72/48 = $1.50
10% mark up = $1.50 x 0.10 = 0.15 cents
retail price = $1.65
Step-by-step explanation:
Answer:
[5, oo)
Step-by-step explanation:
Add 6x+16 to both sides:
20 ≤ 4x
5 ≤ x . . . . . . divide by 4
The solution interval is [5, oo).
Answer:
1. (x - 5), (x + 1)
2. (x + 5), (x -2)
Step-by-step explanation:
1. x^2 - 4x -5
Find two numbers that both multiple to -5 and add to -4 (-5 and 1)
(x - 5), (x + 1)
2. x^2 - 3x - 10
--same concept for these question
What two numbers multiple to equal -10 and add to equal 3?
5 and -2
(x + 5), (x - 2)
