I believe it would be the first choice
Hope that helps!
Answer:
Step-by-step explanation:
hello :
16t²+120 = y
16t² = y -120 so : t² = (y-120)/16
if : y-120 ≥ 0 t = ±√((y-120)/16)
×=12
4×+7+6×+9=118
4×+6×=118*7+9
10×=120
×=120/10
12
the answer is b good luck