B i think the answer is for #5
Answer:

Step-by-step explanation:
Let
h(t) ---> the height of an object in meters
t ----> the time in seconds
we have

For t=6 sec
substitute in the quadratic equation the value of t and solve for h


8 as that means what two of the same number makes up , in this case 64. 8x8=64
Answer:
Step-by-step explanation:
.