Yolando is buying supplies for school. she buys n packages of pencils at $1.40 per package and m pads of paper at $1.20 each. what does each term in the expression 1.4n+1.2m represent? what does the entire expression represent?

n packages of pencils are purchased at $1.40 each

m pads of paper are purchased at $1.20 each

the meaning of 1.4n

the meaning of 1.2m

the meaning of 1.4n + 1.2m

1.4n is the number of dollars spent on packages of pencils

1.2m is the number of dollars spent on pads of paper

1.4n + 1.2m is the total amount spent on the supplies

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