Pure tin was mixed with a4%in tin alloy to produce an ally that was 16%tin .how much pure in and how much 4% alloy were used to produce 32 kg of 16% alloy ?

2.5 milligrams is equivalent to how many grams

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?