On a number line what is the distance between -3/7 and -2/3 ?
23/21

1/4

5/21

-23/21
explain

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2