.10 I hope that that helps you :)
1) 3•5(64-65)
2) 3•5(-1)
3) 3•(-5)
4) -15
Answer:
Step-by-step explanation:
80 -15 =65 so she would get 65 pencils back
Answer:

Step-by-step explanation:
It appears you're trying to simplify ...

The final factor cancels the denominator of the fraction, so we have ...

_____
The applicable rules of exponents are ...
(ab)^c = (a^c)(b^c)
(a^b)(a^c) = a^(b+c)
(a^b)^c = a^(bc)
Attached solution to triangle.