Joseph is playing a game. he started with 15 points. in the first round he lost 30 points. in the second round he won 25 points. in the third round he lost 15 points. write and solve an expression to show the change in joseph’s score.

30-15=15+25-15=40-25 i think.

you have to add all the points he won and all the points he lost not toghether separatly then subtract all the points he lost from the ones he won

a

step-by-step explanation:

u take $30 minus $24. the answer/original($30)

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c