Solve the system by substitution.
-Y = x
-7x – 5y = –20

Step-by-step explanation:

Substitute for in the second equation:

Multiply:

Combine like terms:

Divide both sides of the equation by the coefficient of , which is :

Now, substitute for in the first equation:

Multiply:

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation: