Janice is trying to earn $30 to buy a necklace. she has saved $5.25. she earns $2.25 per hour weeding her grandmother's garden and she earns $5.50 per hour selling seashells at the flea market. will janice have enough to buy the necklace if she works in the garden for 2 hours and at the flea market for 4 hours? use the inequality 2.25y + 5.50z + 5.25 ? 30. yes, because the total will be $26.50. yes, because the total will be $31.75. no, because the total will be $25.25. no, because the total will be $46.50.

Yes, because the total will be $31.75

Step-by-step explanation:

Let

x -----> number of hours weeding grandmother's garden

z ----> number of hours selling seashells at the flea market

we know that

The inequality that represent this situation is

so

For x=2 hours, z=4 hours

substitute in the inequality

-----> is true

therefore

Janice will have enough to buy the necklace

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