Stella ran her first half marathon in 2.7 hours. By how many hours must Steila reduce her time to run her next half marathon in fewer than

2.3 hours? Write and solve an inequality to represent the situation

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?