Me its the last question only have 10 min

tasha used the pattern in the table to find the value of 4 to the power of -4
(refer to the pictures)in which step did tasha make the first error?
step 1
step 2
step 3
step 4

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

How many roots does the graphed polynomial function have? 1-02

Write a function rule for  “the output is  5 less than the input.” let  x be the input and let  y  be the output.