If y varies directly as x, and y is 18 when x is 5, which expression can be used to find the value of y when x is 11?
oy (11)
y (11)
(18) (5)
11
y- (18)(5)

the answer to your question a or b but i am pretty sure it is b. i hope this : )

step-by-step explanation:

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

4.

step-by-step explanation:

it have the same area.brainliest

thats not a system of equations, that is a solution