Answer
$7\geq r$
Work Step by Step
$2+4r\geq5(r-1)\longrightarrow$ multiply using the distributive property
$2+4r\geq5r-5\longrightarrow$ subtract 4r from each side; add 5 to each side
$2+4r-4r+5\geq5r-5-4r+5\longrightarrow$ combine like terms
$7\geq r$
