For $7.52 you purchase 8 pens and highlighters from a local bookstore. each highlighter costs $1.09 and each pen costs $0.69. how many pens did you buy?

the answer is that you would purchase 3 pens.

Step-by-step explanation:

if you buy 5 highlighters that would be

1.09 x 5 = 5.45

and then if you buy 3 pens that would be

0.69 x 3 = 2.07

if you add them together you get 7.52 :)

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%