1. x^9/x^2
a.x^11
b.x^7
c.7
d.x^5
2. h^14/h^5
a.h^-9
b.1/h^9
c.h^19
d.h^9
3. 4^4/4^6
a.-16
b.16
c.1/16
d.-1/16
4. 5^0
a.0
b.5
c.1
d.-5
6.-2r(8r+5)
a.-16r^2+5
b.-16r^2+10
c.-16r^2+10r
d.-16r^2-10
7.2a(a^2+4a)
a.2a^2+6a^2
b.2a^3+8a^2
c.2a+6a
d.2a^3+6a^2
8.(3y)(3y-2)
a. 9y^2-6
b. 9Y^2+5y
c. 9y^2+1
d. 9y^2-6y
1.a
2.c
3.b
4.b
5.c
6.d
7.b
1 nope. subtract exponents when dividing
2 nope. same reason
3 nope. 4^-2 = 1/4^2 = 1/16
4 nope. using the logic of the first 3 problems,
5^0 = 5^1/5^1 = 5/5 = 1
any number to the zero power is 1.
#6 I suspect a typo, as they are all wrong
#7 B (But I suspect that you did it wrong)
#8 D
You have some serious reviewing to do.