The answer is 2/3 , you go up 2 and to the right 3 which means it is a positive slope of 2/3.
Her estimate is reasonable because there are 12 months in a year. 12×40 is 480. 480 is pretty close to 474.72
The answer is B.
Because the slope= 3x.. and to find the perpendicular line, you need to flip the variable to a fraction and make it negative.
Ratio of girls = 7/10
So, no. of girls = 200 × 7/10 = 20×7 = 140
It should be just 12b, since they all have the same exponent, they can all be combined.
