Which rule which allows us to change the sign of an exponent

Step-by-step explanation:          

                                                                                       1

Given x³, we can write the equivalent expression

                                                                                    x^(-3)

                                                              1

Given y^(-4) we can rewrite this as  

                                                             y^4

Here we're applying the "rule of negative exponents."

f(x)=2/3x+4/3 is the answer because is whose power in the senate is equal to the power of the speaker of the house?

step-by-step explanation:

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock