Irene is training for the 200-meter dash. Yesterday she ran the dash in 31 37/100 secs. Her goal is to run the dash in 28 1/10 secs. By how many seconds must Irene reduce her time in order to reach her goal?

A) 59 1/4
B) 32 1/2
C) 3 3/4
D) 3 27/100

How many $20 bills do you need to have to make $280

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided