Question 760135
let x be the time Nancy spent making phone calls, then we have
x +2x +(x+.5) = 7.5
4x = 7
x = 7/4 = 1.75, 2x = 3.5, x+.5 = 2.25, so

Nancy spent 1.75 hours making phone calls, 3.5 hours attending meetings and 2.25 hours writing emails