What is the value of the expression –7 – 5 + 4?

a.
–16

b.
–6

c.
–12

d.
–8

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

What does independent variable and dependent variable mean in math?