Tom bought 7 new baseball trading cards to add to his collection the next day his dog ate half of his collection. There are now only 38 cards left how many cards did Tom start with someone help me please!

The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

East black horse $0.25 total budget is $555 it'll cost $115 for other supplies about how many flyers do you think we can buy