How much of a 90% alloy must be combined with 70% gold alloy in order to get 60 ounces of an 85% gold alloy?

Driving 75 mph, it takes alicia 2 hours to reach the airport to go on a vacation. it then takes her 4 hours to get to her destination with the jet traveling at a speed of 400 mph. how many miles does alicia travel to get to her destination?

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

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