The answer is C
all of them plugged in as x work
If it says 3×8 its like saying 8+8+8=21.
It's just a faster way of adding.
Anything multiplied by 0 is 0.
Anything multiplied by 10 just add a 0 to the end of the number example 10×2=20.
Answer:
$614.2
Step-by-step explanation:
Um I just calculated it. I'm in Algebra 2 so it's light work
21x+1+14x+4=180
35x+5=180
35x=175
X=5
21(5)+1
105+1
Answer
25 add them up Your welcome