Alexandra bought 4 spools of thread. Each spool held 375 meters of thread. How
many kilometers of thread did Alexandra
buy in all?

1.5km of thread

Step-by-step explanation:

1 spool = 375 m

4 spools = 375 x 4 = 1500

1500 m = 1.5km

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign