Abag of potatoes has a mass of 4 kilograms. some potatoes are taken out. the mass is now 2305 grams. what is the mass of the potatoes in grams that were taken out of the bag?

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

Find the y-intercept and x-intercept for the equation 5x-3y=60 what is the y-intercept

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?