Tell whether the ordered pair (-1,3) is a solution of the system of linear equations y=-7x-4 y=8x+5

Consider a graph for the equation y= -3x+4. what is the y intercept? a) 4 b) -4 c) 3 d) -3

Which graph corresponds to the function f(x) = x2 + 4x – 1?

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?