Find an equation for the nth term of the arithmetic sequence. -20, -16, -12, -8, ...
Options:
an = -20 x 4(n - 1)
an = -20 + 4(n - 1)
an = -20 + 4(n + 2)
an = -20 + 4(n + 1)

Asystem of equation is shown below 6x - 2y equals 3 . and 5x + 3y equals 4. would you solve by substitution or elimination? and why

The graph shows the rate at which paint is used to paint a wall.enter values to complete each statement below based on the graph.when 1 gallon of paint has been used, ( # ) square feet of the wall will be painted.the unit rate is ( # )square feet per gallon.

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)