a special vitamin capsule provides 250% of the vitamin C needed daily if 60 mg of vitamin C are needed daily. How many milligrams of vitamin C are in the capsule? HELP I WILL GIVE BIG BRAIN

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?