Solveit

yea i saw

sorry my mistake i wrote 13x in term s of 12x

Hayley why did u started to wrote wrong answers ?

let s say one of the length is 7x and another 12x

P=(a+b)*2

95=(7x+12x)*2

95=38x

x=95/38

so:

one of the length is 7x: 95/38*7 = 17.5

the other is 13x: 95/38*13 = 32.5

x+1.2=-1.8

find the x

-3

you are asking for the same thing again and again look at the other samples and do it by yourself 

it s a pythagorean theorem: $a^2+b^2=c^2$

first one:

ratio 8 to 9 mean 8/9

360*8/9 = 320  (B)

second one:

s-represent all student s

j-represent student s which have job

s*2/5=j  (C)

52!/7!*(52-7)! = 133784560

Answer:133784560

what i wrote above it is permitation 

52!/(52-7)! = 674274182400

Y-intercept 4 mean that your line pases through (0;4)

Your formula is:

$y=mx+b$

So we have (x;y) which is (0;4) and slope which is m=-2

Let s put it into our formula:

4=-2*0+b

b=4

Your equation:

$y=-2x+4$

Here s your graph: