The length of a rectangle is 2x inches. The width is x + 4 inches. Find the value of the x if the perimeter of the rectangle is 50 inches.
full Remember that nerimeter is the sum of sides or distance around)

Help ASAP pleas

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Polynomial that can be factored as (3x-4)(3x+4)

How does the graph of g(x)=⌊x⌋−3 differ from the graph of f(x)=⌊x⌋? the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted right 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted up 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted down 3 units. the graph of g(x)=⌊x⌋−3 is the graph of f(x)=⌊x⌋ shifted left 3 units.