4times what number get me close to 84 without going over

4 times 21 gets you 84 exactly but 20 times 4 will give you 80 (The closest you can get to 84 without going over)

Hope this helped!

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

the probability that a bird is green (.30) is true

step-by-step explanation: