What are the x-intercepts of the graph of the function f(x)=x2+ 4x-12

What is this inequality notation? t is less then or equal to 2

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?