23 POINTS are not many, but can you help me with these 2 questions?

PLZ

A

B

C

D

questions

h= -16t (squared) + 135t +76

Solve this quadratic equation

-16t(squared)+135+76=0

and take the positive root.

and C for the second question: b(squared) -4ac=4

Step-by-step explanation:

step-by-step explanation:

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i think it’s c i believe