Need all answers as quick as possible please.

Step-by-step explanation:

20(m)+30   20 mins per kg + 30

90mins or 1.5 hours     3kg*20=60 mins +30 mins

120 mins                120-30=90  90/20=4.5 kg

check 4.5kg(20)=90+30=120

its 4 because 2 times 2 is 4, if you double the number two you get four

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