= 3(4a^2 + 4a - 3) - 4a^2 + 28
= 12a^2 + 12a - 9 - 4a^2 + 28
= 8a^2 + 12a + 19
= 4a(2a + 3) + 19
47 miles taxi ride will cost $32.9
Step-by-step explanation:
Given,
Cost every 36 miles = $25.20
Cost of one mile = 
Cost of one mile = 
Cost of one mile = $0.7
Cost of 47 miles = Cost of one mile * 47

47 miles taxi ride will cost $32.9
Keywords: Division, multiplication
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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)