Tammy is choosing between two exercise routines. in routine #1, she burns 20 calories walking. she then runs at a rate that burns 18.5 calories per minute. in routine #2, she burns 37 calories walking. she then runs at a rate that burns 14.25 calories per minute. for what amount of time spent running will routine #1 burn fewer than routine #2? use t for the number of minutes spent running. show your work

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

it is a. 4.2 because 7.6-3.4 gets the remaining length of 4.2. i might be wrong but i am pretty sure this is the answer.

0.02

step-by-step explanation:

time of 9 192 631 770 periods of the radiation corresponding to the transition between the 2 hyperfine levels of the ground state of the caesium 133 atom at 0 k (but other seconds are sometimes used in astronomy)

add them

step-by-step explanation:

idk you did not give the options or numbers so you cant solve it