39.15 ^-^
YOUR WELCOME
sorry for caps lock lol
Answer:
Step-by-step explanation:
(a). 
= x ( 2x + 1 ) = <em>2x² + x</em>
(b). 
= 2( 2x + 1 )( 5x + 3 ) = <em>20x² + 22x + 6</em>
(c). 
= 20x² + 22x + 6 - ( 2x² + x ) =
( 20x² - 2x² ) + ( 22x - x ) + 6 =
<em>18x² + 21x + 6</em>
What is that sign in the middle ?
Answer:
5 months
Step-by-step explanation:
Daniel's provider charges $60 for installation and $45.95 per month. Sydney's provider has free installation and charges $57.95 per month
Let x = number of months
Daniel = 60 + 45.95x
Sydney = 0 + 57.95x
Equate both equations
60 + 45.95x = 0 + 57.95x
Collect like terms
60 - 0 =57.95x - 45.95x
60 = 12x
Divide both sides by 12
x = 60 / 12
= 5
x = 5 months
Daniel and Sydney would have paid the same amount for high-speed Internet service after 5 months
