I believe you will sub. in 3 for t so h=-16(3)^2 + 60(3)+6. then you will just solve!
h=-16(9)+60(3)+6
h= -144 + 180 + 6
h= 42
so the answer to your question is c. 42 Feet
Hope this helps! :)
Answer:
Step-by-step explanation:
4.4a-2.9a= 1.5a
6.8-7.3=(-0.5)
Ans: 1.5a+(-0.5) OR 1.5a-0.5
-7 and -.9 are two possible addends