The height h(t) of an arrow is modeled by h(t)=-3ť +21t+6 where t is time in seconds. What is the maximum height reached by the arrow, and when does it occur?
A) 38.75 whent=3.5 sec
C) 42.75 whent=3.5sec
B) 38.75 whent=7sec
D) 42.75 whent=7sec

idk

step-by-step explanation:

i don't know

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas

answer: 10 meter

step-by-step explanation:

need details