Which of the following expressions is in simplified form? 9j - 3-j
4 w - 5
1 1/2 n + 2.9 n
-2+ 1.4 m + 0.5

4w+5

Step-by-step explanation:

because 9j-3-j can be simplified to 8j - 3

1 1/2n + 2.9n can be simplified to 4.4n

and -2 + 1.4m + 0.5 can be simplified to 1.4m -1.5

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2