Please please answer this correctly I have to finish the sums by today
as soon as possible
Tatsu leaves a friend's house to run a series of errands. He goes 5 blocks west, 20 blocks east, 20 blocks north, 20 blocks east, and 20 blocks south. How far and in which direction must Tatsu go to get back to his friend's house?

35 blocks north

35 blocks south

35 blocks east

35 blocks west

45

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204