Which expressions simplify to a rational number? select each correct answer

What is the value of f(x) = 2.2 for f(-2)?

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%