In cattle red coat color is co dominant to white cost color. what would be result of a cross between a rr male and ww female

Cattle with coat of both red and white.  

Having co-dominant alleles which means that they are both strongly expressed, would yield offsprings with both characteristics carried by alleles. In this case, because the red and white coats are co-dominant, it would make sense that both characteristics would appear in their offspring. A Punnett square below demonstrates how the answer was derived.