Answer:4/7
Step-by-step explanation: cross-canceling helps
12/7×1/3
4/7×1/1=4/7
H(-10)=70
because when you input -10 in for each a, it will equal 70
To express
5
−
2
as a positive exponent we will use this rule of exponents:
x
a
=
1
x
−
a
5
−
2
=
1
5
−
−
2
=
1
5
2
Answer:
b-m b-c b-r
Step-by-step explanation:
