Which of the following inequalities matches the graph? graph of an inequality with a solid vertical line through the point negative 7, 0 and shading to the left of the line x ≥ −7
x ≤ −7
y ≤ −7
y ≥ −7

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Find the domain and range of the following function f(x) = 51x - 21+ 4

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /