Answer:
Step-by-step explanation:
600,000,000
486/900 = .54 = 54%. .......
Answer:
Jamie, because 9 out of 10 is a 90 and 12 out of 15 is an 80
Answer:

Step-by-step explanation:
Using the rule of exponents
⇔
, then
=
= 
Answer:
The correct answer is 10 units.
Step-by-step explanation:
Profit function of a small business is given by P(x) = 0.3
+ 7x - 40, where x is the number of units sold.
The small business intend to make a profit of $60.
To find out the number of units the business has to sell in order to have a profit of $60 is given by,
P(x) = 0.3
+ 7x - 40 = 60
⇒ 0.3
+ 7x - 100 = 0
⇒ 3
+ 70x - 1000 = 0
⇒ x = -70 ±
× 
⇒ x = -70 ± 130 × 
⇒ x = 10 or -
Quantity sold cannot be negative giving us the value of x as 10 units.