Which number is represented by "F" on the number line?

A) 17
B) 18
C) 19
D) 20

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

What numbers are included in the set of integers? what numbers are not included?

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer