Two friends go to the store because mangoes and apples are on sale. one friend buys 4 mangoes and 7 apples, spending $14.89. the other buys 8 mangoes and 3 apples for a total of $18.89. how much does each mango and each apple cost?

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%

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.