Answer:

the charge is $5 dollars per mile
Step-by-step explanation:
He truck is rented at $40 per day plus they charge per mile of use the truck travel 15 miles in one day and the total charge was 115
LEt x be the charge in dollars per hour
Initial charge is 40 and 15 miles travelled in one day
total charge = 15x + 40
Given : total charge is 115
So the equation becomes

Now we solve for x
Subtract 40 from both sides

Divide both sides by 15
x= 5
so , the charge is $5 dollars per mile
When multiplying two powers that have the same base, you can add the exponents.
Answer:
y = - x² - 4x - 9
Step-by-step explanation:
Given
y = - (x + 2)² - 5 ← expand (x + 2)² using FOIL
= - (x² + 4x + 4) - 5 ← distribute parenthesis by - 1
= - x² - 4x - 4 - 5 ← collect like terms
= - x² - 4x - 9 ← in standard form
25 hope it helps (;......
The equation would be 2x+3 so when you plug it in it's 2(-2)+3 which simplify to -4+3 which is -1