Answer:
135 is the correct answer
Step-by-step explanation:
6x^2-3x
substitution
x=5
6* (5*5) -3*5
6*25-3*5
150-15= 135
7 + 3 + 98
14/21 + /3 the 21 is inside the radical and the 3 is in a radical also
2220 miles divided by 554mph would give you 4 hours
1×5 or 5×1 would be a factual of it