13 points
a city has 13 coffee shops. there are 7 starbucks, 4 dunkin donuts, 2 joe muggs, and 1 einstein's. if a person selects 1 shop at random to buy a cup of coffee, find the probability that it is a starbucks or a joe muggs.

The probability is 9/13

Step-by-step explanation:

If you add the amount of Starbucks coffee shops with the amount of Joe Muggs. That will give you 9 coffee shops out of 13 coffee shops.

instagram is better than go there instead lol

step-by-step explanation:

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.