Three angles of a quadrilateral are congruent. The fourth angle is twice as big as each of the other angles. Which system of equations can be
used to find the measures of the angles? (Note: The four angles of a
quadrilateral add up to 360.)

A. y=360 -2x
y = 3 x

B. y=360 -x
y =2x +3x

C. y =360-5x
y =3x + 2x

D. y=360-3x
y = 2x

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

Ineed someone to me answer my question i have to have this done and knocked out

Me! i will mark brainliest! i don't get polynomials and all that other stuff. so this question is really hard. multiply and simplify.(x - 4) (x^2 – 5x – 6)show your