( ALGEBRA 1 ) Which of the following measurements has more than one dimension?

width of a television

area of a piece of paper

the diameter of a pencil

height of a staircase

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

2/3(-6y+9x) expand each expression using the distributive property

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years