Whenever you mutiply 2 or more terms with the same base you can add the exponents. whenever you divide 2 or more terms with the same base you can subtract the exponents.
whenever u have an exponent expression that is raised to a power you can mutiply the exponent and power.
using the basic exponent rules above simplify each expression.

4²· 4⁷=
3⁴· 3⁶=
5 · 5²=
y⁴ · y=
(xy)²(xy)⁴ =
2³ · 2⁵ · 2=
(3²)4=
(5⁻²)³ =
(-3⁴)⁻² =
(y⁻²)⁰ =
(9⁰)³ =
(y⁴)⁴ =
(⁻5³)⁷ =
x³·x⁸ =
(4⁻²)⁻⁵ =
3⁰ · 3⁵ =

there is nothing below so i cannot

step-by-step explanation:

unless you made a typo, the answers are both a and c.

step-by-step explanation:

1.5/3 is .5 whereas 3/9 is .3333333 not proportional

22/33 is .66666 and 4/6 is also .66666 proportional

2/4 is .5 whereas 142/213 is .66666 not proportional

14/7 is 2 and 7/3.5 is also 2 proportional

you could've also checked it by doing this simple division:

if the larger fraction divides with the smaller fraction to equal 1, it is proportional. so let me show you what i mean:

when i divide 22/33 by 4/6 i get 1, so we know it is proportional, and it is the same with 14/7 and 7/3.5. now if i divide 3/9 by 1.5/3 i get .66666 so therefore we know it is not proportional.

there are many ways to do this so i wanted to show you some possible ways.

4.28095238095 that is the answer