It’s b because n equals weeks so after the first week he has given back five dollars because 5 time 1 is 5.
Answer:
6.25
Step-by-step explanation:
(x-a)^2=x^2-2ax+a^2
2a=5
a=2.5
2.5 ^ 2 = 6.25
To solve, start with this equation

So, 8 times 3 gives you how long they spent on art and 8 times 4 gives you how long they spent on science. So they spent...

and...
Answer:
2 notebooks are $2.48, 7 notebooks are $8.68
Step-by-step explanation:
Unit rate is 1.24
1.24x2= $2.48
1.24x7= $8.68
Remember
|x|≥0 for every real value of x
so
|x|/-6=12
divide both sideds by -6
|x|=-2
false, the absolut value cannot be negatve