Melanie and her cousin grace are arguing about who is
the faster swimmer. grace: 325 m in 5.5 min
melanie: 300 m in 5 min

Grace is the faster swimmer

Step-by-step explanation:

because Grace can do 25 m in .5 min, whereas Melanie can do 65 m in 1 minute, or 32.5 m in .5 min.

equation-

300 ÷ 5 = 60

325 ÷ 5 = 65

Grace is faster.

Step-by-step explanation:

To find unit rate, you divide the m by the minutes. so 325 ÷ 5.5 and 300 ÷ 5!

325 ÷ 5.5 = 59.09

and

300 ÷ 5 = 60

So Grace is faster since she took less time to do more distance!

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.