Elena donates some money to charity whenever she earns money as a babysitter. What percent of her income does She donate?

10%

Step-by-step explanation:

The question is incomplete due to missing data

Say she earns $1000

And she donates $100

Hence the percentage of her earnings she donates is

=100/1000*100

=10000/1000

=10%

Hence the percentage is 10%

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

3.how is solving radical equations different than solving linear equations?

step-by-step explanation: