Alright, so we plug (-2) in for x. (-2)^2 =4, and we can plug that in as 4(4)+(-2)+5. Next, 4*4=16, so we get 15+(-2)+5. After that, we get 15-2+5=18
Answer:
3sqrt(2) ................
The key information here is the time he took to run the race - 420 seconds
We know that there are 60 seconds in 1 minute so to find the number of minutes we divide 420 by 60 to get 7.
Murad took 7 minutes to run the race
50$ on Saturday - $12.50 x 4hrs = $50
58$ on Sunday - $14.50 x 4hrs = $58
she earns $8 more on Sunday than Saturday