CAN SOME1 JUST PLS GO TO MY PAGE AND ANSWER MY MATH QUESTIONS!!! I REALLY NEED EM TO GET MY GRADE UP BEFORE SCHOOLS OVER! I HAVE AN E IN MATH And don't even answer this, just say ok in the comments

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =