Simplify

4/a-a/4

a. 16-a^2/4a
b. 4-a/4a
c. 4-a/a
d. -1

Multiplying an even number of negative numbers gives an answer that is choose from:

Find each value of the five-number summary for this set of data. [note: type your answers as numbers. do not round.] 46, 19, 38, 27, 12, 38, 51 minimum maximum median upper quartile lower quartile

Yvaries inversely as x. y =12 when x=5. find y when x=4