Probability, Percent (A)

Probability

100

Probability of flipping a penny with "Tail" twice

1/2xx1/2=1/4

200

Probability of rolling a dice with an odd number

3/6=1/2

300

List all the outcomes of selecting 2 colors from black(B) and white(W)

BB, BW, WB, WW

400

Probability of rolling a dice twice with a sum of 4

3/36=1/12

500

Probability of selecting 2 red marbles without replacement from 3 blue, 4 red, and 5 green marbles

4/12xx3/11=1/3xx3/11=1/11

Percent (1)

100

2% in decimal

2%=2/100=0.02

200

0.3% in decimal

0.3/100=0.003

300

20% of 15

20/100xx15/1=300/100=3

400

Price of a $100 dress after 20% off

20/100xx100/1=20, 100-20=80

500

Cost of a $1000 iPhone 17 after a 9.75% tax

9.75/100xx1000/1=9.75/1xx10/1=97.5, 1000+97.5=1097.5

Percent (2)

100

0.1 in percent

0.1xx100%=10%

200

1/4 in percent

1/4=0.25=0.25xx100%=25%

300

Percent change from 2 to 3

(3-2)/2=1/2=0.50=50%

400

Cost of $120 meal with 20% tip

20/100xx120/1=2400/100=24, 120+24=144

500

Percent change from 4 to 3

(3-4)/4=-1/4=-0.25=-0.25xx100%=-25%