hey mate,

<=>

As we know that 
then

<=> (x+4) = 0
<=> x = -4
so there is one solution x = -4
thanks
Answer:
Step-by-step explanation:
Answer:
460 miles, 1 week
Step-by-step explanation:
249 per week + 0.25 per mile
180 per week + 0.4 per mile
after 460 miles in 1 week the cost will be the same
Answer:
<u>Eric earned last month US$ 9,786.25</u>
Step-by-step explanation:
Commission of Eric on each house sold = 5% = 0.05
House 1 $55,000
55,000 * 0.05 = $ 2,750
House 2 $105,525
105,525 * 0.05 = $ 5,276.25
House 3 $35,200
35,200 * 0.05 = $ 1,760
Eric earned last month = $ 2,750 + $ 5,276.25 + $ 1,760
<u>Eric earned last month US$ 9,786.25</u>