Which relations below are also functions? {(1,1), (2,2), (3,3)} {(1,1), (2,1), (3,1)} {(1,1), (1,2), (1,3)} {(1,1), (2,3), (1,3)} {(1,2), (2,3), (3,2)}

Bob’s bank charges him a $3.15 service fee every time he uses an out-of-network atm. if bob uses an out-of-network atm an average of three times every two weeks, how much will he pay in service fees over the course of a year? a. $327.60 b. $109.20 c. $491.40 d. $245.70 select the best answer from the choices provided a b c d

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)- 144x+360 what am i doing wrong?