Wouldn't the formula be a×b/2?
B. Because the divisor, 4.2, has only value in the ones and tenths places, so we only have to multiply by 10 to get to 42, which is the whole number you need.
Answer: 
Step-by-step explanation:

Move the g-terms to the left side. and the independent terms to the right side. Remember to change the sign if you move from one side to another.



Divide by -1 on both sides to make g positive. When it comes to dividing by negatives in inequalities, the inequality sign changes direction.


97 rounds up to 100
78 rounds up to 80
100x80= 8,000
estimate=8,000
97x78=7,566
product=7,566
The answer will be: 1,000,000 if you round to the nearest hundred thousands. Hope it helps! :D