Which expression is equivalent to -9 - 9?
–9- (-9)
0-9 + (-9)
Submit Answer
0-9 +9
|-9- (-9)

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Find the equation of a line whose slope is 2/5 and y- intercept is 2.write your answer in the form 1) ax+by+c=02) x/a+y/b=1