Find the sum of (–4 + i) and (10 – 5i).

a. –3 + 5i

b. –3 - 5i

c. 6 – 4i

d. 6 – 6i

Liesl grew 7/12 of a foot in one year. her little sister grew 1/3 of a foot during that same year. how much more did liesl grow than her little sister did

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?