Tom has saved $390. He plans to spend $30 each month for music lessons. The function s(t) = -30t + 390 describes his savings, s, in dollars as a function of the time, t, in months.

x is the months because that is the amount of time he has before he runs out of savings and y Is the savings because that is what he is calculating

Step-by-step explanation:

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.