Ben and jerry start with the same amount of trading cards. after ben gives twelve of his cards to jerry, jerry then has 2 times as many cards as ben does. how many cards did ben have at the start

The expression 6x2 gives the surface area of a cube, and the expression x3 gives the volume of a cube, where x is the length of one side of the cube. find the surface area and the volume of a cube with a side length of 6m

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.