10. Aldo saved up $500 for summer vacation. If he spends $25 a week for 8 weeks, how much money does he have left in his savings? Explain.

$300

Step-by-step explanation:

500-25(8)=m where m is the total money left

500-200=m

m=300

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%