Write a unit rate for the situation.

102 beats per 2 minutes

:beats per minute

51

Step-by-step explanation:102 beats : 2 min

                                              ?beats       :1 min

               Do 102 times 1 which gives you 102 .Then divide by 2 and you get 51.

Hope it helps. :)

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.