Question

I NEED HELP. MEDAL WILL BE GIVEN.

Answer 1

Im done task 1/ I need help with 2 and 3!

Answer 2

x+y+y=14
or x+2y=14 ...(1)
\[3x+\frac{ 5 }{ 4 }y+\frac{ 5 }{ 4 }y=21\]
or 12 x+5y+5y=84
or 12 x+10 y=84
or 6x+5y=42 ...(2)
solve (1) & (2)

Answer 3

huh?

Answer 4

from (1) x=14-2y
put in (2)
6(14-2y)+5y=42
84-12y+5y=42
84-42=7y
y=42/7=6
x=?

Answer 5

what problem is this?

Answer 6

it is the same as in a,b,c but written in a different way.
parameter of any closed polygon is the sum of sides of the polygon.